Best stocking suggestion I ever got is to think of what you want your tank to look like in the end. Write down EVERYTHING whether you know it can go together or not. Just any and everything you think my be cool.
From there you can break it down by importance to you, sensitivity, aggression, etc. Then you can look at it and see if anything conflicts (sensitive corals and things that eat them etc)
Then once you have that final list of things you want that all work together you can simply start knocking things off and checking/adjusting as you go.
I know that sounds like common sense, but it simplifies the process SO much if you take that first step to just get it all down on paper so that you can really look at it, and other people whose opinions you value can look t it as well and offer suggestions.
Maybe it's just because I'm a visual person lol.