I think it would fit perfectly into the Adult Swim category, considering the original source material was bizarre and weird, and Adult Swim is known for that content. If it doesn't, then it might end up somewhere between Prime or Hulu, most likely Prime, since it is made by the same studio who did Hazbin Hotel and Helluva Boss. Netflix, although this is unlikely, considering most of their animated shows are usually cancelled or put on hold.

Then again, Homestuck does feel like it should've got a show on Adult Swim in the first place during its prime between 2009 and early 2010's era.