have you tried looking everywhere online to see if anybody still has stock you can buy? Like if you are size 8 Nordstrom Rack has one pair left, etc.

The most comfortable shoes I have ever owned are a pair of Keen Jaspers that I got from Salvation Army for $3.50. They were pretty well used, after a few months I had to shoegoo some parts of the sole, but they are so soft! Unfortunately all the new Jaspers have garish color accents, mine are nice and all blue-grey. I wouldn't recommend them for biking though, unless new ones have significantly stiffer soles. Mine are like moccasins.