They all sound like imitators(not really) because most of them played on the Bitches Brew record. At least Herbie Hancock, Joe Zawinul, Wayne Shorter, John McLaughlin. :)
"Imitators" might not be the best word, but judging from these musicians’ recordings as leader or sideman to others up to about 1970, which are generally in a much more traditional postbop vein, they might not have made the leap to fusion had it not been for Miles’ late 1960s albums already opening up a new genre gradually and then IASW and Bitches Brew throwing the doors wide open.