There are a gaggle of KR808 brands on the market. Some of the top names, V2, Vapor4Life. Most of them have discount codes that you can muster up here and there for first time orders too to save you some more $$. I was a big V2 cigs guy when I started vaping (almost 3 years now). I would do some research online, check out pricing, shipping prices etc and go from there. Trial and error, there is no gold standard, everyone is going to have their own preference, but this community is here to help you in any way we can.