I've used Delco Voyagers since back in my sailboat days and have had great service from them. Every A-1 Auto parts store sells them. I have one in my trolling motor/house battery bank that is going on 5 years and still accepts and holds a charge. My starting battery that was installed when I bought the boat is at 2 years and seems to be OK, although I don't have much experience with them. You are probably good with almost anything except Exide, Interstate, and Continental.
I've seen lots of vote for Walmart batteries, but they aren't true deep cycle. I call them 11 month and 29 day batteries. You keep your receipt and take them in the day before the warranty expires and tell them it went bad. Wally replaces it and you are good for another year.
2015 Seaark 1872 MV CC Etec-90
Two Helix 12 CHIRP SI's, , MinnKota Riptide ST80/i-pilot Link, Bob's Hydraulic
Bitter Gun Owner