If you’re looking to make a profit, sps and zoas are your money makers. Euphyllia grows too slowly (although if you invest in some nice buy not over priced pieces your ROI is pretty good) and LPS is difficult to frag without a saw. Sps you can just snap off pieces and it’s easy as pie, and if you grow the zoas on a frag tile they’re super easy to just scrape off and glue.
Personally, I have a lot of corals that I can frag, but I also like some corals that are just for me like my RFAs, scolies, lobos, etc. I understand about the money situation (I’m 16 and jobless so selling coral is the only way I’m able to support my hobby) but Id prefer to have a scoly that I love to look at than a bunch of sps/zoas that I think are meh.