I use an old Oneida. It's a snappy arrow flinger but heavy as heck. The new Oneida Ospreys are much lighter but they're not cheap.

Browning makes a Barracuda for bowfishing. It's a lower poundage, fair priced compound. It does have some finger-pinch issues. Try one first, if you can.

AMS bowfishing makes the Fishhawk bow. It's about 330.00 fully rigged for bowfishing (reel, rest, etc.). It's a bit longer than the Barracuda so finger pinch is not such a problem.