I bought a Trailkeg about 3 months ago and I have liked it so far. They have separate adapters for a tank of CO2 on their website. I like that you can fit their lid on different sized containers and they lid fits both Yeti and RTIC.

TrailKeg - Gallon Stainless Steel Growler for Beer - Vacuum Insulated Double Wall Design - Chrome Tap and Dual Stage CO2 Regulator - Keeps Drinks Perfectly Cold and Carbonated - Portable and Durable https://www.amazon.com/dp/B07D2LTXXX/ref=cm_sw_r_cp_apa_i_-Z4cDbHZPTFGW