Are you going to shoot subs or supersonic ammo? I keep an RMR on my 9.5” pistol. A LPVO is another option but with braces being banned/in limbo they are more difficult to use effectively. I tend toward supers for deer. I like the Barnes Vortex 110 or 120(when I can find them). I found some S&B or PPU 120s, I can’t recall at the moment who made them, but the bullet construction was very similar to the Barnes. I haven’t gotten to try them yet. For subs I use the Hornady A-max and I have some custom Makers rounds.
But I mostly use my pistol with hogs and 147gr FMJ out of deer season.