A few places to start looking:
Silverstone RVZ01, RVZ03, FTZ01
Fractal Design Node 202
Sliger SV590, SM580, Conswole
Sidearmd T1
Cougar QBX
Ncase M1
Lian Li TU150
SFFTime P-ATX
Or smaller ATX/MATX towers like the Sliger Cerberus (or X), Raijintek Styx and Inwin 301. I believe the Fractal Design Define Nano S, NZXT H210 and maybe the Phanteks Evolv Mini might be able to handle a big GPU like this too, if you use an SFX PSU and remove the PSU shroud.
Most of the above cases are small batch.