While the combat application tourniquet (CAT) and the SOFT-Wide are two of the most common tourniquets on the market, they are not without their flaws. This video discusses the problems with these devices and gives three tourniquets that fix these issues.
SAM XT: https://www.sammedical.com/products/sam-xt-tourniquet
RMT: https://www.chinookmed.com/item/05182/m2-inc.-tactical-ratcheting-medical-tourniquet-rmt/1.html
TX3: https://www.revmedx.com/tx-tourniquets/
Wound Trainer: https://humimic.com/product/hm-wound-management-leg-trainer/