Why don’t you try some of the mainstream ones that you can get from Tesco, something like BSN No-Xplode, MtRx Amped or the new PHd one think it is called V-Max pump.
They are all the same pretty much they all have beta-alanine, citrulline malate, creatine, caffeine and arginine.
I have always shyed away from them as they seem more aimed at bodybuilders to get a ‘pump’ whatever that means! But reading what people suggest on here and CF regarding stimulants they seem to have all the main ingredients that people reccommend.