Are any Chromebooks able to run fully libre?

[Sam Kuper]

Dear Coreboot folks,

At the present time, are any of the Chromebooks operable (i.e. all
basic functions working, except 3D which I don't care about) without
the need for binary BLOBs in drivers or firmware?

If so, which Chromebook(s)?

Thank you,

Sam

P.S. I am new here, so if you feel this is the wrong place to ask my
question, or if I have overlooked a resource that yields the answer
straightforwardly, please set me straight.