Check these out. Mine friends have them and love them ( a bit expensive though). They’re taking off atm

Goal Zero Nomad 10, Foldable Monocrystalline 10 Watt Solar Panel with USB Port, Portable Solar Panel Backpacking, Hiking and Travel. Lightweight Backpack Solar Panel Charger with Adjustable Kickstand https://www.amazon.com/dp/B085KVK22P/ref=cm_sw_r_cp_api_glc_fabc_eea9Fb7FRWQEY?_encoding=UTF8&psc=1

Edit: it’s not only solar panels but they also have battery pack-unit things you can plug stuff into. Neat brand of stuff