I've got a Walmart deep cycle marine. They are made by Johnson Controls. No complaints. It's the largest that would physically fit in the battery area, I think a Group 25 but not 100% sure. I like deep cycle batteries, especially if you have a winch.

2000 Mitsubishi Montero Endeavor, "Katsumi", 138k
1993 Toyota Tercel, backup vehicle, 93k
1989 Isuzu Trooper, "Beniko", R.I.P. at 233k

My 'Genuine Isuzu Parts' decals - for sale