1) Master of Many Styles for the Monk. Assuming styles will still be a thing in PF2.
2) Vivisectionist Alchemist. Maybe something less evil in feel, but I like sneak attack in place of bombs.
3) Skulking Slayer for the Rogue. Half-orc strength based rogue is so fun and d8 sneaks are awesome.
4) Iroran Paladin. I love the hand to hand paladin idea but I'm not completely satisfied with how it is implemented in PF1.
5) Skirmisher Ranger. This is actually part 1 of 3 of one of my favorite builds from pf1 (using skirmisher, wild hunter, and shapeshifter archetypes). But I like losing spells for some neat tricks.