For a quest 3
Switched from a kiwi strap to the BOBOVR S3 Pro Super Strap - For Quest 3 & 3S. It's a halo strap, not much weight and pretty comfortable imo. The batteries are hot swappable so if you have two of them you'll pretty much never run out of battery (not that you'll need it if you don't plan on long play sessions) I think the charging dock for the batteries comes separate though, so it's a pretty pricey strap
You don't need the charging dock though, you can also charge the battery packs via USB-c, the dock is just for if you really want those 5+ hr sessions