supplement suggestion

I am 5'9" and about 200 lb with about 15% body fat. I work out 6-7 days a week, do a lot of HIIT training and eat very healthy, but I am having trouble getting that fat percentage down. I am looking into a Thermogenic/fat-loss supplement, but most reviews i read just talk about the increased energy levels and the buzz it gives during workout. I have a very good energy level, and don’t really need a caffeine pill to keep me energized. Could you recommend a fat-loss supplement that does more that just give me a caffiene rush?