What makes and battery size's are good in Foxbody's?

When I got my Fox about 5 years ago I went through a few Duralasts to learn they don't last. Die Hard doesn't have a battery that is correct for for 84 5.0. I ended up with the Advanced Auto Auto Craft which worked Ok I guess but its failing now the warranty is up.

A while back a guy in local Ford dealership wanted to sell me an oversized Motosrcraft that would have required removing the battery tray. Didn't wanna do that.

I think I have a bad cell in the Auto Craft. The last 2 times I tried to have it charged at Autozone they told me it had a bad cell, but when I take it to Advanced, they say its fine and they say it took a charge.

Any suggestions?