Any good ones? I have only used HOT-ROX and although it works great it always makes me flush waaay too much.
I know of Yohimbine HCL and Forskolin Extract. Yohimbine doesn't qualify as a stimulant, but some people feel energetic from it. I don't feel anything, but I'm very sensitive to actual stimulants. Also, HOT-ROX has Yohimbine, I think.
Simple EGCG (epigallocatechin gallate). Found in green tea, can also be taken in supplement form. It increases the hormone CCK (cholecystokinin), the hormone responsible for the feeling of satiation. Additionally, EGCG also increases thermogenesis, which will cause more fat burn.
High dose tyrosine. Technically a mild stimulant though
I like keep a piece of raw ginger in my pocket. Chew a little piece off....and hunger is gone and metabolism is raised. It's raunchy at first, but you get used to it quick.