If Endless and Brembo aren’t your thing then check out some of these rare brake setups for the Subaru.
Prodrive X Alcon water cooled 6-piston calipers.
STi X AP Racing 8-piston calipers. Though the Prodrive X Alcon kit is really cool, I’d have to go with these. I’ve known of maybe 1 other car actually running these. They’re extremely rare and were only available in Britain I believe.