I just wanted to open a thread for everyone to share their experience on different platforms/Publishers, so it might be able to help new writers on where they might fit.
Some of the ones I have experience with:
Amazon (not vella)
As you can probably guess I've been around the block and DEFFINATELY made some mistakes. Let me explain my experiences with each in the hopes you can find what works for you. These are just my experiences and may not be exactly what you experience.
Vocal: A platform built more for articles. While you can write stories it doesn't have a function to group them for readers to easily find/read. You can earn some quick money at the start with their milestones, but after those initial milestones it can be difficult to earn money. The tipping function is nice and so is being chosen as a feature, but I wouldn't count on it for consistent revenue. It is nice to compete in contests and they do have a subscription service (Vocal+) if you want a higher payout for views (would only recommend if you have a large fan base or you are an influencer of some sort).
Blogspot: It's a website you make that's a blog. Works like a normal website in some ways, but I don't see this one being anything other than an online public diary.
Wattpad: Great place to hone your craft and they do occasionally have contests, but they get works stolen from them ALOT. If you are partial to the story you may need to fight for it. I am unsure if there is a way to make money off the platform other than the constest. Someone else is probably better informed about that.
RoyalRoad: Great place to get loyal fans. It doesn't seem as active as other platforms, but seems to equally share everyone's new work. The algorithm doesn't seem to favor any one group. I don't believe you can make money here, but I could be wrong.
Tapas: Great for webcomics and Novels, but highly saturated and Webcomics get more readers every time. It is possible to make money, but it is extremely difficult and not that high of a payout if you aren't an original. No idea about the original payout as I have not seen that contract.
Webtoon: Comics only. Great place to test out art styles. Highly saturated. Even top comic creators don't make very much (at least according to the documents top creators have shared on TikTok, so unsure how bias that is).
POPComics: Dead. There's no visible updates or traffic from what I can tell. IDK I might have been unlucky, but it really seems dead.
Dreame: Perfect for romance or Werewolf stories. Bad payouts, lose copyright, and some authors have issues getting the money they have earned. The contracts are not at all appealing.
Webnovel: I was approached by an "editor" for them asking to sign a story of mine. I was given a contact. I asked questions and was told not to worry about certain wording RED FLAG. THAT IS A LEGAL DOC. I'M GONNA WORRY.
Inkitt: Similar to RoyalRoad, but if it gains enough popularity they might publish a physical copy.
Amazon: Self-publishing... I could go on for days about the pros and cons. For that I would recommend you just look up how people self-publish on amazon. This is not the same as Vella.
FanFiction.net: Great place to hone your craft, especially if English is not your native language and you are trying to learn (I've seen some stories like that). No chance at revenue, purely for hobby. I have heard of story theft on there, but I haven't seen it, so take that with a grain of salt.
Toonit: Webcomics only. They give 3D assets for those that can't draw, but they do have subscription levels for said assets. I was part of beta, lot of growing. Could not make my story at the start (no assets I needed) and very long load times for anything (I have a top of the line computer it was not my machine that was having issues). I eventually gave up and have been waiting for their official release (just happened) to see if anything has changed. I haven't had the time to go back to see what's happened, but it might be worth it for some authors. They also have a discord, but some of it is in another lanuage. Understandable as they are based out of South Korea (I think).
HearMyVoiceLLC: An inide traditional publisher. They mostly focus on kid authors (give them a springboard into publishing and some school partnered projects), but they do have some adult writers. It is small, but they do their best to be a publisher and are slowly growing. Everything about them is the typical publisher experience except the revenue cut (much higher than most traditional pub because they are new and indie). Since they are new the marketing doesn't reach as far, but every day they reach a bit more people. Super understanding if you need time to write. They would prefer completed works, but will look at authors who aren't done with their book yet.
Mythrill: Episodic Novels and LitRPG no comics. This is a very new platform (not a year old yet), so there are still growing pains like not as many viewers as other platforms (but rapidly growing) and there's no author platform yet (they are working on one, but for now they default to google docs). They also have limited formatting, but recently added more options (even more options will be coming soon). You also have to go through an application process to be an author with them. However, you keep the copyright to your story (the contract states they are leasing the rights for a set amount of time), but you can't have the story up anywhere else. They want exclusive stories. They do provide editing (want you to edit some first and they go back over for anything you missed), marketing, marketing materials, data sheets for how your stories are doing, lore card art (lore cards are cards of your characters, items. locations, etc that appear as readers progress), in the case of LitRPG Dynamic cards (these cards stats change as the story progresses think DnD or Isikais where the cards show stats), and story cover art. They also have a discord for the community and one for authors only (after they have been accepted as an author not just applied) to help with bugs, promos, etc. I have made money with this platform. HOWEVER, I am the #2 story, I do have 2 stories with them, and was one of the original 20 authors on launch, so my experience may or may not be the usual.
That's my 2 cents and my experience. Please let me know yours, down below.