Back to Quero, it is tough to find a good comp for him. From 2009 through the present, 12 catchers saw a decent chunk of time in High-A during their age 19 season. Two were not really considered among their organization's top prospects (Santiago Chavez and Francisco Pena), three are currently among their organization's top prospects (Francisco Alvarez, Ivan Herrera and Quero), four either switched positions or were derailed by defense (Feliciano, Jesus Montero, Wil Myers and Tommy Joseph), and two were bat-first prospects who developed enough to stick behind the plate (Gary Sanchez, Keibert Ruiz). Christian Betancourt might be the best comp among the group defensively, but he had maturity questions that you never really hear about Quero.
Catchers with plus defense and intangibles have a way of sticking around. It is why Martin Maldonado is still going strong, having played 100 games in each non-pandemic season since leaving the Brewers, despite struggling at times to stay above the Mendoza line and posting a career OPS that I believe is on the wrong side of .650. It is why former Brewers prospect Max McDowell was invited to the Yankees alternate site during 2020 and recently signed as a minor league free agent despite a fairly poor offensive season at AA last year.
If he develops at all offensively, and the scouting reports on his defense and intangibles are accurate, it is tough to see him not having a decent length big league career.