Welcome to AA , Saltwater tanks can be very relaxing , what direction are you looking to go , FOWLR
(fish only with live rock) or Reef (with corals) . Have you done any research
on saltwater ?
Tell us a little of what you would like for your tank , are you aware this tank will require maintenance , what type of equipment are you looking to use ? filtration , lighting ect ,
this will decide what fish you can keep along with if you could keep coral ,
Please be aware start up can burn a hole in your pocket fast , so I suggest you to look for used equipment to start with , you can always upgrade later on at your pace if you like .