If memory serves there isn't a great deal of variety in magical belts in the 5e DMG.
There are belts of strength and a belt of Dwarvenkind,
That's it. (Girdle of M/F never made it in to the 5e DMG)
Fizban's treasury of Dragons added the Dragonhide Belt.
Explorer's Guide to Wildemont added the Stormgirdle.
With the removal of 4 kinds of belts we are left with 5 armor slots, 3 jewelry slots, and our weapons/shields to boost our character.
Should make for some interesting choices.
