For me I would say “The Expanse” is a huge one. If there was ever a self made family, the crew of the Rocinante is one of the best. The amount of time they spend together and how they congeal into life long partners and friends in the face of some truly awful events is really inspiring to me.
Self-made vs inherited/familial greatness is a pretty major theme in The Diamond Age: Or, A Young Lady’s Illustrated Primer by Neal Stephenson. First thing that comes to mind.