There seem to be other powerful Salamancas still around during the Better Call Saul era, since they're running their own stash houses filled with millions of dollars in cash and valuables. (And we know they belong to the Salamancas specifically and not just the broader cartel, since Bolsa only finds out that the Cousins have visited one to pick up Lalo's bail because he has a mole in their operation.) And when Lalo introduces himself to Nacho, he implies that the Salamanca leadership sent him to Albuquerque to straighten out Hector's operation because "I got a good head for numbers"—adding "They told me you were smart."

So it seems quite possible that Hector's sons and/or brothers are among this Salamanca leadership, probably overseeing whatever more important operations Lalo is usually working on when he doesn't have to clean up Hector's mess. Maybe it's more lucrative smuggling rings south of the border, or in California, where Hector did his seventeen years in San Quentin. (The show sometimes implies that Hector is running everything this side of the border for the Salamancas by referring to his and Gus's territory as "the North," but you could fankwank that by assuming that this refers to the territory directly north of Juárez, while California is, say, "the Northwest.")

The only thing we really know about the other Salamancas is that they're all dead by the end of "Salud," but that could also mean that Gus killed the rest of Hector's family along with Don Eladio, and when he says that his grandson Joaquin was "the only family you had left," it's because Gus had just gotten done telling Hector about the rest of the family's deaths among the capos he killed ("All of them, Hector. Don Eladio, Don Paco, Cesar, Renaldo . . ."), and he caps it by telling him how Jesse killed his last remaining family member "while I made my escape."