for tapas, I have about 2.4k subs and 43.5 k views and I have only earned 0.71$ in total in ad revenue alone in the past six months. --- so like most people say, don't get excited too much or don't expect too much on ad revenue. On Support, I have earned 4.49$ (before fees) --- so it's not so much either
On another platform however (I'm just keeping the name a secret to avoid breaking the guidelines when I mentioned it just in case but if it wasn't I'll just edit this) , I have 12k subs and around 15k views during the first month (I started mirroring my work there around march this year) and earned 5.55$ on the ad revenue alone (minus the 3rd party fees) take note: it's only for one month -- so you can see that the difference is larger. --- which means that my series is performing much better on that platform.
They also have monthly incentives depending on how much US page views you have on a month, if you hit 40k page views, you can get 100$ but I haven't hit that yet (I'm only halfway during my first month with them) so I can't tell much about that either.
If your work was lucky enough to be noticed by an editor, they will offer you the option to publish paid chapters or something like an early access. About that, currently that platform has offered me to publish paid chapters with them just now, and is currently negotiating -- so I don't have any idea yet on how much can you earn from that either.
I haven't launched my patreon yet because I have no content to put in there, and because my story is mature, the nsfw chapters will be published there. I also think it's best to launch it when you already have a stable reader base already or you can also start on it just in case you have something to offer that cannot be published on the platform like nsfw chapters or simply because want to have it just in case.--- but, according to some folks I know who has been publishing their comic for a long time, majority of their earnings from their comic come from there.
In the end it will still depend on how good your series will perform, or how would you like your series to perform, and each platforms usually have a specific type audiences' preferences that dominates the said platforms as well. Each platforms has their own strengths as well like here in tapas for example, ink support is usually the best way to go if you want to earn without being premium. with those mentioned, you might want to consider those factors if you're really planning to make money out of your works. ^^