I might recommend https://www.board-db.org/ https://www.board-db.org/ -- up to date parametric search for single board computers with prices and links to buy.

I might recommend https://www.board-db.org/ https://www.board-db.org/ -- up to date parametric search for single board computers with prices and links to buy. I am not affiliated with the site, but use it regularly. Sometimes, it allows to find really obscure boards which fit a niche application.