Welcome to our little piece of the reef.
To get started, I would suggest:
1. figuring out where you want your tank to go and the size you have to work with,
2. Going to a local aquarium store that sells tanks. get a hands-on experience.
3. figure out what you want to keep ( fish only, corals only, both, what kind of corals ect...)
4. Make a physical list of what tanks and livestock you liked and take pictures.
5. Come back here and post what you liked/found.
this is what I did when I got into this addiction...ahem...I mean hobby 3 years ago.
We will be able to guide you from there. Everyone here has literal decades of combined experience and we are all willing to help you every step of the way.
Welcome!!!