Try Ala Vilamor. This was on the undercard of Tyson-Bruno II in 1996. Villamor was a southpaw. Watch in the end when he slips the right jab and counters with a left uppercut. Beautiful. Or Alex "Nene" Sanchez in 1997 on the Trinidad-Waters undercard. That was a boxing lesson against a very good fighter. Also Ratanopol Vor Apin on the Trinidad-Vargas undercard in 2000. These were all PPV fights so it might be difficult. Some good Showtime fights were; Kitichai Preecha Myung Sun Park Enjoy.
Any of his fights on Youtube will suffice, literally any. He's consistently dominant. Perfect textbook boxer, excellent variety of punches in his offense, great footwork, just the exemplary textbook boxer.
That Villamor fight is what I've seen. He's JMM like on that one. BTW Villamor is not the current trainer of Banal, Bautista & all ALA boys.
His movement and footwork is better than JMM, and he's an overall more versatile fighter, given that he's also a very skilled defensive fighter, and not as open to getting caught off of his own counters.