Kohree 50 Amp to 15 Amp 110V RV Adapter Plug, 15 Amp Male to 50 Amp Female RV Power Adapter Cord 12", RV Dogbone Electrical Adapter with Twist Lock Plug & LED Indicator

https://a.co/d/054ktdRj The adapter above is likely what you want... You'll be fine to run everything but the AC unit/units or water heater, but fridge, micro, tv/PS5, phone charger, etc would all be fine Use a heavy (12ga) extension cord

https://www.amazon.com/dp/B07KQR4M8L?th=1