Neon Leon Spinks in his pro eighth fight, putting a whupping on some guy called The Greatest to win the World Heavyweight Title.
Fidel LaBarba. Flyweight Gold Medalist. Fought Jimmy McLarnin four times (in Fidel's second and third pro fight), Frankie Genaro and Georgie Rivers in 11 fights. But yes, Lomachenko is already a two-weight world champion in 7 professional fights and would absolutely detonate Salido in a rematch now (that's the unanimous consensus).
The Thai's (Poontarat, Muangsurin, Kittikasem, Veeraphol, Payakaroon etc) deserve a mention. Sun Kil Moon certain deserves a mention Naoya and his brother have faced stupid opponents so far, might be worth seeing where Hinata Maruta's future first (not many teens debut against a world ranks guy)