Chess.com or Lichess?
I find the moderation on lichess to be the worst. When they close an account they don't provide a detailed specific reason for that user, and when you appeal they reply with template replies of possible "rules broken". Wait 6 months before appealing again for something you have no clue on is not really appealing. Other than that, they have a good analysis section which gives adequate evaluations. You can also add them to a study section.
ChessDOTcom should do the same.