For local LFS I primarily buy from Fintastic, though usually that's for fish and inverts - but they do tend to have some attractive corals too. I would recommend Reef Farm in Raleigh for some corals as well. More often for corals I tend to buy from locals like Barbara (@bsagea). Online I seem to spend a lot with Unique Corals, particularly during their live sales. There are a few other online sources I'm considering for some hard-to-find acros, but I'm holding off on those until after I set up a bigger tank this summer.