PMD Ancient Revival (by KazzMcSass, comicfury) - ongoing

No humans; MCs are a Slakoth and a shiny Umbreon. A modernized PMD-ish setting, no references to games.

There's some adventuring but mostly it's character interaction.

Almost full-on anthro; quadrupeds are still quadrupeds and fishes are still fishes. Simple but neat artstyle.

So. The premise of this one is that the MC is a doctor reseraching cure or at least treatment for "the feral sickness", a disease that manifests as sort of progressively worsening manic episodes until eventually driving them insane, and that he also has. I'm no expert on mental illnesses but to me it reads like a (possibly autobiographic) analogy for ADHD/depression/bipolar disorder or something along these lines. If that's not enough for you to be either instantly turned off or sold on the story: it's not like Omori where it occupies the entire plot, it's an important backdrop but plenty of other things happen. For the most part it's just The Quest. The characters are pretty well-written, the foundation of the story is pretty solid. The plot is spinning up, I'd say the pacing is pretty good. The only thing I'd really crititize it for is the MC having an always-encouraging super-rich mentor figure, which I think takes narrative pressure off unnecessarily, but he doesn't pop up very often.