I started on a JoyeTech Double 510 Starter Kit. Used it exclusively for the first 4 months of vaping, and was totally off smokes by 2 months time. Added eGo batteries and clearomizers by the middle of 4 months. I got some 1100mAh batteries which lasted a good while. Then added a couple Eleaf iStick Mini 10w mods and Innokin 16D clearomizers. I still use all of those at times, (even sometimes my beginning stuff), even though I've progressed to larger mods and a variety of different tanks.
One kit that I came across recently, and bought several for friends trying to switch to vaping...is the KangerTech TopEvod kits. They come with a battery, a matching tank, and a charger, and have been on Sale for around $10 or less lately. The coils for them are readily available, too, and aren't expensive. The people I've had try them love them, and I even use 1 kit myself to take in town with me on short trips.
Another decent kit that I've bought multiples of (to stash for others possibly switching & for myself) is the KangerTech Evod Mega Kit, that comes with a 1900mAh battery and matching tank. It lasts a LONG time and coils are also readily available. Have gotten them recently on Sale for about $10-12, too! VaporBeast even had them on sale, and I think still does!
Either of those above would be great starter kits IMO. Not expensive to try and see if you even like vaping, and coils are not expensive either. Once you find out if you DO like vaping...then browse for more to add to your vaping equipment. Some people stay with that kind of set-up, many progress to higher power mods and bigger tanks, to RBAs, etc. What's important though...is finding what works for YOU. Doesn't matter then what anyone else uses at all.