Everything will leak if not handled and set up correctly. Every atomizer has it's strengths and weaknesses. Even the high end
rba's will leak and be a source of frustration if mishandled. The trick is live and learn. Find the type and style of atomizer that you'd be most comfortable with and fits your idea of vapping. Then buy 2 or 3 different type and makes of that style and see which best suits your needs. Nobody can tell you what is best for you, that is for you to discover. Most of us here are not using the same system that they started with, many are still trying different attys and battery devises looking for the ultimate vape. Some of us have attained what they believe is their final set up, usually it consists of on or two battery devises and at least 2 different types of
rba's and quite possibly more than one of each. lol, then we focus on the best build for our rba's, which basically evolves as new builds are discovered and techniques are learned. My current ultimate system is a Provari with either a genesis style rba or a
kayfun style rba, perched on top.
Good luck and welcome to the forum, Lots to learn. Just follow the yellow brick road.