Yeah, I'd say lineless is probably the way to go if you want something that looks similar to your current style, though I'm hesitant to recommend this without knowing how detailed your sketches tend to be; I just searched up some tutorials real quick and all of them involve having a very detailed sketch first (which in my mind is basically equivalent to lineart XD)
Painterly is also an option, though it pretty much involves a completely different skill set than what you might be used to as someone who draws lineart. Basically, painters work top-down; starting out by blocking out blobs of colour and then 'chiselling' away at them until detailes emerge which is pretty different from the bottom-up approach of having all the details done first via lineart/detailed sketch and then applying colours in a way guided by your inking. Easier to get into once you have a good grasp on absolute colour: i.e. once you don't rely on multiply layers and stuff to do shading and you're able to just eyeball the colour of the shaded area.
You can also try lineart with constant line weight. It might be less annoying, or you might run into the same problems worrying about it being clean enough; I suggest giving it a try anyways in case it's the former
As a fellow lineart-hater I totally feel you. What I do is just have messy inking and colour underneath it. It does kind of feel like I'm telling you "oh, you're perfectionistic? Just get over it lolol", and I know that's not helpful, but maybe the following would justify it a bit more for you. There's something which I like to call the 'law of conservation of polish', which basically boils down to if nothing looks polished, then everything does, and vice versa.
In other words, people tend to only find the messiness jarring if it's present in one area of your work and not the other.
- If you have clean lineart with messy colouring underneath, it's gonna look weird.
- If you have messy lines with clean colouring underneath, it's gonna look weird.
- If you have a really polished character in front of a sketchy background, it's going to look weird.
- But if you have messy colouring, messy lines AND a messy background, then it's not going to look weird as long it's not so messy that you can't even tell what's going on
A corollary of this is that if you have a clean art style, mistakes are going to be more noticeable. And therefore you're going to feel more compelled to correct it to stop it bothering you. But if there are mistakes literally everywhere, then it's not a mistake, it's a feature