Come to Detroit. It's still REALLY cheap and the tech job market was #2 in the US for growth.

Depends on the exact WFH environment. If companies go with permanent full remote option, then I'd pick an area with zero or low state income taxes, warm weather, and cheap housing. Las Vegas area, South Florida. Texas is interesting but I don't know much about the cities there, having never lived or visited.

If companies look like they're aligning on more of a hybrid model where you can WFH but they expect you to show your face in the office every so often, then I'd have to stick to $CA$ and maybe head out somewhere on US-50 between Folsom and Placerville, or maybe way up I-5 somewhere towards Shasta.