I haven't played Thirsty Sword Lesbians but "a selected arrangement of tropes" hits the nail on the head when it comes to Dungeon World and Blades in the Dark. At least The Sprawl (also PbtA) offered multiclass options and enough lateral advancement that playbooks were more a theme than a rigid dichotomy.

Going back to Fate, this system has become my go-to for "I have a story I want to tell with my party and I just want the rules to, basically, function". Great for those games where the storytelling matters and the rules almost don't.

Cypher is another good one if you need linear (or at least, level-like) progression, and an emphasis on finding and using cool loot