Well keep in mind you only have 80 watts (which is actually a lot for a new vaper) to work with. So you will want a tank that will work well within that limitation. Some others may have other suggestions, but the only tank I have used is kanger toptank mini. It comes with a 0.5 and 0.3 (I think) premade coils, and an RBA mini (rebuildable mini coil) and 2 spare wire coils. Which also lets you buy your own wire (about $8.00 canadian here for 30ft which is about 24 coils worth) should you wish to do so. (once you do, you wont even want to use the premade factory coils)
That atomizer is easy to build on, easy to change coils, easy to fill and easy to troubleshoot. AND it is top fill so you don't dump juice all over yourself if you forget to turn it upside down when filling (like with bottom fill tanks) *yes, I have done that a few times on my epen style*
Most of your coils will work in the 30 to 45w range, with some special build coils handling around 70w.