I took a look around and a lot of comments mentioned to get one that uses ‘LiFePO4 Batteries’, and that seemed like a reasonable requirement.
They’re supposed to have a longer life span, be safer, light weight, and better charge/discharge efficiency which is in line with what I’d be looking for.
Some brands/models that I saw recommended:
BLUETTIcame up in more recent postsEcoflow(specifically theRIVER 2) came up a lotAnkerwas suggested a few times, but the comments weren’t that detailed
edit, added an image of what I’m referring to


I think Anker products are generally pretty good. Another option that might seem a bit left field is the DJI unit if you want to shell out more for a product with more power, options and from a solid brand, it’s maybe a bit more aimed at drone pilots and videographers but it’s also viable for camping and general use as well.