>>118599872In no particular order:
Garbett and Nguyen, neither of whom need any elaboration.
Damion Scott. His style and its quality can vary a bit, but his Steph is iconic. When I think of her most character-defining scenes, taking a beating from Cass and getting right back up again in Batgirl #28 is always the first to come to mind.
Rafael Albuquerque. I think he only drew her the one time, but damn did he draw her well, in and out of costume.
And... maybe it's cheap to give Artgerm a top spot when he doesn't do interiors, but like, come on now.