Did you look at Portland, OR? I moved here from San Francisco, where I was terrified of cycling.

Here there are lots of bike trails, complete streets reserved for bicycles (“neighborhood greenways”), and even a bicycle/pedestrian only bridge for getting downtown. I can do a lot of my errands almost 100% on bike infrastructure without feeling at all unsafe.

I have even started going on bike rides for pleasure, which was never a thing I would have considered in San Francisco