His twitter bio has this: "Dad-84 Iowa TE,Uncle-84 Ohio State TE,Cuz-84 South Carolina TE"
Everyone in his family has been a tight end, it seems.
Good on Drinkwitz for getting on this guy really early (though still not the first major conference school). With Iowa's success producing NFL tight ends and the fact that his dad played there, they'd have to be considered a favorite. They haven't offered, but I assume they'll be heavily involved.
He's also said he looks at Nick Bosa as his inspiration: "My goal is to look and move like Nick Bosa and take that to the tight end position."
https://247sports.com/college/iowa/Article/Mac-Markway-Iowa-Hawkeyes-Football-Recruiting-Notre-Dame-South-Carolina--145994045/
So given his admiration for Bosa + his uncle being a former Ohio State tight end (not to mention their on-field success), you have to assume they're going to be hard to beat, as well, if they get in the mix.