Hamilton, Montana is at the top of my ever-changing move-to list at the moment. Epic mountains (the Bitterroots) with lots of great little pocket water tenkara creeks. Lots of streams within half an hour of town. Hamilton is an hour from Missoula, which has everything you’d need as far shopping and amenities go.
I currently live in eastern Idaho. There are lifetimes of amazing fishing within 45 minutes to 3 hours of here, but there’s not much of the small pocket water I like that’s closer than 45 minutes or so. Ideally, I’d live in a place with creeks that are 15 minutes away or less so it’s easier to get out for an hour or two if I want. But the access to great waters in Idaho, Montana, Wyoming, and beyond is so good here that I might want to end up staying here despite the lack of good creeks super close by.
I lived in Ogden, Utah, for my first 8 or so months of being into tenkara. Some great creeks and rivers in that area, including the Ogden River (more of a creek, really), which runs right through town. Cutthroat, brown trout, and rainbows are catchable within 15 minutes of town. Adding on another 15 minutes gets you into brook trout territory. I really liked Ogden. It’s a good place if you want relatively affordable housing and great access to the outdoors (and it’s not a traffic nightmare like the Salt Lake or Provo areas).
Too many people in Colorado and California for me to want to live there