Need stocking help


Reefing newb
I would like to make a 75g Reef tank with fish, live rock and sand, and corals, I don't know much about saltwater fish and I am brand new to the hobby. Heres what I'm thinking

2 Ocellaris Clowns,
2 firefish goby
Some Frogspawn
Some cool inverts (Ideas please)

That's all I have in mind, I would like maybe a bigger fish that will work with everything, Also some cool corals, Thanks (note I'm a beginner and difficult fish might be hard)(Also how much Live rock do you suggest and what light/filter and if any other equipment is necessary(heater))(sorry for asking so much I'm new again :/).