How to shop for different candle wick thickness

I'm completely new to candle making and have been making every mistake imaginable. One thing I cannot solve is how to shop for thinner candle wicks to try with the wax I'm making. My candles are burning way too hot with no scent. I can't find any information online about candle wick thickness or how to filter search popular online merchants.

I'm using a half parrafin half beeswax blend and tried a 6 inch pre-waxed soy wick from Amazon. Way too hot. I tried ordering from a different merchant who listed "thick" and "thin" wicks, and purchased the thin ones only to find they seem about the same thickness as the previous ways. If someone could help me get on the right track it would be greatly appreciated.