In any case, for me, I look for a base that is somewhat easy to access for my survivor. Like… if a base is in the middle of nowhere, surrounded by nothing but forests, then chances are that I’ll go bored with it due to how hard it’ll be exploring other places. Even then, it’s somewhat negotiable for me, since later on in the game I’ll probably have a vehicle with lots of storage so my survivor can take long road trips exploring other places.
Aside from that, I like it if a base is somewhat close to a refugee center - or better yet, an outpost. I’m okay if the base is somewhat close to a town. Kinda okay if it’s close to a triffid grove. Definitely not okay if there’s any sort of fungal growth anywhere near it.
Ice labs have spoiled me though, since 90% of the time I want to make a base in an ice lab since it can store perishable goods for an infinite amount of time.
Still, I’ve made some bases in interesting places. One of my favorites was under a city. There was a tunnel sealed off by metal doors that connected the subway to a sewer. It made a nice slum-like base for my survivor who scavenged a horde-infested city during the night. Also managed to survive on a massive city by making a base in a fire station, and that run pretty much removed any chance of driving around since it was city everywhere.