Sounds like we need a forum just for fast food, lol. If you’re talking sit down restaurant burgers, I like a local place near me called “Twisted Root”. I think there’s a few in the DFW area. Like most burgers these days, they’re overpriced but certainly tasty with lots of options.
I usually get the “Bison” burger made with buffalo ground meat. Leaner and tastier IMO. And Twisted Root has homemade pickles, and their shakes are made in front of you the old fashioned way with the silver canister, ice cream etc, like the old soda shops.