Hello and welcome! You will find a LOT of great info here, so read up as much as you can.
There are many e-cig vets here (with a lot more knowledge than me) who can help you choose a good starter model that hopefully will meet your needs, at least until you gain experience and get a clearer view of exactly what you want. Don't hesitate to ask!
One suggestion I can make: Don't get too hung up on getting an e-cig that looks just like a real cig. I did that and, although the one I got works, it is not quite to my liking in things like vapor generated or "
throat hit", so I'll be getting another one soon. I thought it would help simulate real smoking but the appearance actually has little to do with how well it will help you quit (at least for me).
Again, welcome, and good luck!