look at it.
honeycomb lx2k. powerful arm workstation. looks like it might be a candidate for libreboot
this looks like a blob but appears to just be training data for the dram:
not really a blob in the important sense to libreboot, because it's just non-executable data, and only one correct way to implement it, so i wouldn't mind including these in libreboot, but i'll have to look at this in more detail
neoverse n2 looks like it'll be interesting in the future too, though not really anything available using it yet. see:
there's the ampere one but it's very non-free: https://www.anandtech.com/show/16315/the-ampere-altra-review
this also looks fun