travel trailer electric power

The only solution to that is to sell the 30 amp trailer and buy a 50 amp trailer. Otherwise, you will have to limit your high draw items, like coffee maker and toaster, to two at a time. Other high draw items are refrigerator, water heater, converter/charger, microwave, air conditioner, etc.

Part of that can be alleviated. Put your water heater on propane, not electric, put your refrigerator on propane, not auto. Other than that, you just limit concurrent use.