If you want something more powerful, there're these:
- https://ryf.fsf.org/categories/workstations-and-servers
- https://ryf.fsf.org/categories/mainboards
Also, Andrius Stikonas achieved a blob-free fully functioning (AFAIK) RockPro64 more than a year ago: https://stikonas.eu/wordpress/2019/09/15/blobless-boot-with-...People have to vote with their wallets and pressure vendors.