What a tuff question! I went to a reef show in Chicago and there were so many different cool looking ones. I wrote some names down but i was not married to them:
Bubble Coral
Pulsing Xenia
Favia Coral
Trumpet Coral
Meteor Shower Coral
There is a reef store near me that sells frags 12 for $100 -- I was just going to pick one ones that looked cool. Any thoughts on hearty ones?
I would start with soft corals and after keeping those alive for a few months, then try some LPS, once you’ve kept those alive for several months and gotten the hang of keeping alkalinity stable, then try some SPS/anemones. I would start with the Xenia, some leathers (Sarcophyton, Lobophytum, Nepthea, Sinularia, etc), mushrooms, clove polyps, zoanthids/palythoas, etc. The bubble coral, trumpet/candy cane, ‘favia’ (there are no true Favias in the hobby), and meteor shower (assuming you mean Cyphastrea) are all LPS and I would recommend waiting until you have a little more experience.
I would also strongly urge you to buy all your own test kits and make sure you have a basic understanding of reef chemistry before buying any corals. You are much less likely to have a successful reef long term depending on the LFS to test your water. First, it’s convenient (what happens when you have an emergency outside of business hours?). Second, the LFS employee doesn’t see your tank every day and can’t correlate test results to what is happening in the tank, they’re also not keeping a log of all your test results, so they can’t see how stable it is or notice trends or slight changes and therefore can’t proactively make changes before things become a problem. You also don’t know if the employee is doing the test correctly or if they know how to properly interpret the results. Third, without you taking a hands on approach and having an intimate understanding of your reef’s chemistry, you won’t notice slight changes and won’t be able to correct them before they become a problem. I realize that it’s overwhelming and intimidating when you’re first starting out, but you will learn so much more about your reef and be in a better position to properly manage it if you take a hands on approach. Everyone here is happy to answer questions for you, but you will be much better off in the long run if you test your water yourself.