Well it depends, first, I'd suggest you to join up on the google groups and facebook pages for your 3d printer and just general 3d printer news. I try to keep my prints in 3 categories: commissions, costuming, and useful. I do commissions for things from custom statue stands, helmets, and props. Costuming is obvious, my wife cosplays and I make general pieces for friends as well as my own batsuit coming up. Useful, I work at a tech company in accessibility and currently trying to create tactile graphics of educational material for blind and visually impaired children in k-12 schools. I have never ran out of things to make and the fett community only adds more into it. Try doing something useful for yourself first. Check out websites such as myminifactory, thingiverse, cgtrader, stlfinder. Try printing other peoples' designs then migrate towards creating your own! What model did you end up getting? At this point, I'm building more printers than I am actually using them, its a fun hobby but an easy one to get sucked into!