How do you "plan" out corals
So I am very new to saltwater, and I'm starting to think about what corals I want to put in the tank. I understand the different levels of aggression, but I'm wondering how to put everything together. I have a fluval edge with some live rock that I'm going to attach everything to, but I dont know how to plan this out. I would like mostly the bright vibrant colored corals (this tank is for my girlfriend and she likes bright colors). I just dont understand how all the different ones get along. Is their some kind of method behind setting this up, or is it really just put them in and see how they settle it out?
A few that I know she would like (and I would like to put in the tank) would be:
Colony Polyp, Mean Green or orange/green
Waving Hand - Blue
Flower Tree Coral - Red / Orange
Giant Green Polyp Duncan
Caulastrea Coral candy cane
Evergreen Starburst Polyp
obviously im not looking to put all these in the tank, i dont think thats close to possible (unless Im wrong), but I think she would like a combination of these, or maybe someone else can suggest some more? I would just like to have some long flow-ie ones with some shorter ones in between (obviously the more vibrant, the better). Anyone have any suggestions here?