Cad Bane has a lot of good lines you could probably use, from both Clone Wars and Bad Batch, though Temuera doesn’t voice Boba in either show.

Interestingly, their main rivalry (as referenced in Book of Boba Fett) isn’t (yet?) seen on screen properly. It was originally intended to appear in an unfinished episode of Clone Wars (some of which does exist voiced in rough form, I think?), but they didn’t complete the episode. It may be that those ideas get revisited for a forthcoming episode of Bad Batch.