So I got rid of a few  classes from the PHB in a particular campaign setting that I made for fun (not one I'll play,I just like coming up with campaign settings), and I also replaced them. Then looking at it, I decided that it might be fun to replace ALL classes  from the PHB with  other ones, that are similar to the original. Then I got stuck. Would you be willing to share a few classes that fit the criteria which I will  tell you: Barbarian (d12 hp, marital) Bard (Full caster, d8 hp) Druid (Full caster with ties to nature or fey,d8 hp) Ranger (d10 hp, martial), the rest are already accounted for though I haven't been through each class to know if its balanced, but here is the fluff already accounted for:

Attention hog rouge, monster slaying fighter, witch, beings that draw power from fey/great old ones, both accidentally or willingly (kinda the same thing in this world), holy warrior, knowledge seeker, full caster that can handle any type of magic, and full caster that needs to channel their power without transforming themselves