If I were suddenly cut-loose from the various circumstances that have planted me in the Seattle area, I’d seriously entertain moving to either Austin or Miami.
Austin, for the reasons you listed above, plus when you order a shot of tequila in Austin, it tends to come in a half-full pint glass.
Miami actually has started to position itself as a sort of tech-hub, with tax breaks for tech companies and new office parks. For instance Magic Leap recently posted a couple jobs for ID which seems pretty drooly of an opportunity. Also a loooong time ago I turned down a job designing DJ equipment for a large audio manufacturer, based in Miami. Sometimes I don’t know what the **** is wrong with me.