This nozzle holds 12 nozzles, 3 of each 0.2mm through 0.6mm.
It also holds 4 sockets, covering each of the most common sizes for nozzles (6mm through 9mm).

I placed holes for four 3x8mm magnets on the bottom, and since the nozzles screw in and the sockets click in, you can place this vertically on the front of a shelf!

I printed this in PolyMaker ASA, 15% cubic infill, no supports needed. Any material should be fine. I also wrote a script to create the custom offset threads so they would thread smoothly into the nozzles.