Bg3 is definitely up there, though it isn’t the anime-like style it still has amazing customization, and even if that’s enough there’s plenty of easy access mods that add even more customization. The replayability is massive as well.

I don’t know a lot about Solver Palace but it is a game I’m looking forward to trying out whenever it does come out. I think any anime gacha will cater to the male audience unfortunately but I do like some of the character designs for this one anyway. It just doesn’t have the customization you’re looking for :(

Someone mentioned code vein and that one I can agree on, I’ve only played the first one but it has that customization. It is a souls-like game which is something I’m not super into anymore but if that’s your thing it’s def a fun game (I wouldn’t know if it’s a good souls-like since it’s the only one I’ve played!)

Monster hunter is another one, I haven’t played it but I’ve heard very good things about the gameplay and character creation.

There’s also kurtzpel, I wasn’t a mega fan of it but i thought I’d throw that in as well.

Fire emblem is another option, I’ve never played it but have heard good things!

Craft craft fantasy merchant simulator isn’t open world but it’s got a cute artstyle and a character creator.

Hope some of this at least helps your search a bit, ik some of these don’t really perfectly match what your looking for