Looking good.
My own painting has been glacially slow recently so I empathise with taking time to get paint on things.
As to what to do with them?
I'm running my 5 Parsecs game using 20mm figures. A mix of Copplestone Gaslands, Elheim, Dark Futures figures picked up cheap from various sources, big 15mm stuff and small 25/28mm stuff. The latter particularly for non-humans, after all how big are robots or aliens!
I'm aiming for a Firefly/ The Expanse vibe rather than Star Trek.