Looks like you are getting a lot of great advice and recommendations here. This whole community is pretty helpful and we are all glad you are doing your research and asking questions. A lot of time, new users will get overwhelmed, especially when they are not armed with the right information. It may take some time for you to get the right set up and it may not be what you expect when you get your first setup. But the important thing is to try to stay off of cigs and to not go back. The way I look at it, and especially with the prices of cigs, that it will in more than one way be a better thing to stick with vaping (or any other way to quit) than to go back to smoking.
You can always get the support you need here because there are countless people who have the same experience here that you are now facing, and they can and very likely will support you when you need it.
Now it is very important that you get what you need and people here will do their best to help you get the equipment you need. But in the end, it is what you like, feel comfortable with, your budget, and ultimately what works for you. To me, the most important piece will be to get the mod you need. That is the part that fires the vape. There are countless options out there, but it is very important to get a good and reliable one. That includes size, weight, build quality, and how it fits your needs, and I feel that is the most important piece.
The next thing, to me is the tricky part. The atomizer. They come in several different types depending on what you need and what you want. Tanks are, in my opinion, the easiest ones to use. Just install a coil and fill, and vape. But that in itself is tricky. For a new user, this would be the best avenue to start. There are a multitude of tanks to choose from. For a new user to quit, it is usually recommended to get a Mouth to Lung or MTL tank. There have been a lot of good suggestions in what to get. Finding the one that work for you would include how it vapes, how much it costs, how easy it is for you to use and maintain, and how readily coils are available.
My wife likes the restrictive draw but not as restrictive as MTL. At first it was hard for her to find the right tank and she was usually frustrated. Finally we were able to find the right setup for her. What ended up happening was when we went to a Brick and Mortar store in SoCal, the store was well stocked with other vapers, customers and employees. Being a very pretty girl, (subjective and biased on my part, but seriously she is a very pretty girl), everyone was very nice and allowed her to test their tanks. She settled on the Tobecco SuperTank. But there are plenty of options out there. Just need to find the best one for you.
Good luck and happy hunting.