When it comes to LR its pretty much all the same, with the exception of florida LR as that seems to have a lot more algae and pests. SO when you are looking to choose some just go for what you like the look of in your tank, kind of like buying a car for body style. With Sand you want to go with small diameter argonite but its best to do a little research on its limitations, so do a search on RF on DSB's you should get all the info you need with that.
Mojo