Torch would be a good starter coral, IMO. You should have some flow in the tank though, although it should not be very strong for torches. Gentle swaying is optimal.
As far as from where, I don't think you'll get a straight answer. This forum has a great vendors section full of really high-quality options. You may know this already, but I mention it because I didn't when I was first getting into it, but WYSIWYG means what you see is what you get. Typically, vendors won't post a photo of the exact coral you're getting because it would be too time-consuming and generally not worth it. If you see a WYSIWYG, you're supposed to be receiving the exact item in the photo. You can also check the livestock sale section on here for some awesome deals from other reefers.
QT stands for quarantining. A QT tank is something some people have where they'll place a coral or fish for a certain amount of time to make sure it is healthy and free of pests before placing it in their systems with the rest of their livestock. Down the line, consider one because once something is introduced into your system, be it pest or illness, it can be hard to get rid of and you might lose expensive livestock. That being said, you don't NEED one.
Dipping a coral is typically using some sort of Iodine solution (usually branded as dip for coral) for a short period of time so the Iodine will kill off the same pests and illness you want to avoid introducing into your system. This requires much less of a start-up cost/time so I would recommend it. If you go to any store that sells coral they'll recommend one. I use ReVive by two littles fishies, but people often have their own favorites. Especially with torches, I'd recommend since it might be hard to see if anything is lurking within the.. whatever the swaying things are called. That being said, its good practice, but I don't do it always, or as often as I should. Just follow the instructions on the bottle and watch a youtube video.
