Such as THIS: https://notabug.org/qmastery/libreboot/src/master/docs/candidates.md
The g505s lenovo apparently can run blobless and is a target for libreboot.However, I don't know how durable that device is/when it will be librebooted. Wish I knew both answers...
heh... When it does get liberated I hope it will be sold on minifree.org, etc...