Bookmark. Good topic, this is on my to do list as well.
I went through that a couple of years ago and opted for a tri-fuel generator from Winco that is on 4 wheels. I liked that idea in case we moved or had to leave for some other reason we coild move it with us. I try to fire mine up every month and let it run for about 15 minutes. I made a dummy load to feed to output into using a 5 gallon water container and a 220 volt water heater element. The generator works very good. Here is a link to a website that sells a lot of different ones:
https://www.electricgeneratorsdirect.com/power/winco-generators.html?utm_source=bing&utm_medium=cpc&utm_term=winco%20generator&utm_campaign=Brand+Winco&utm_content=Winco
me too.