lostscout, you didn't say if you're needing a chassis battery or house batteries. Assuming you're wanting a chassis battery, my advice to choose the biggest battery that will fit the battery holder with longest warranty. You can never have too much capacity or too long a warranty.
Batteries are expensive these days and I've been able to find a coupon at this site
https://www.dealnews.com/s2750/Advance-Auto-Parts/ I place the order online using the coupon code and pick up the battery half hour later at the store. All I see right now are 20% off coupons but once in awhile they have one for a $40 savings on purchased over $100.