Thread: Fixing a hole
It's hard to tell you where to go since it's your own personal journey. But I can throw a possibility your way.
A 1010 Music BitBox might make for a tasty addition. You could use it for sampled percussion, sampling loops of your own Eurorack patches (it syncs to clock and records using clock). It can also use the two alternative firmwares (that are free) for a wavetable synth or a multi-function effects box.
Is that the BEST use for the space? I don't know. But maybe that would be nice for you.