There is always the lottery? I'm not sure how that has changed, if at all, since they closed down the in-person lottery, but that used to get you in the front row on the cheap, and fairly easy. But digital may not be as easy to win, ironically? There are also Twitter seats, but I don't know where those typically are. If the box seats don't sell out, those might be a worth a try and then just grab them if he loses?
Also, Jujamcyn lotteries often offer lottery loser codes, so might be worth seeing if that is the case. Just enter for the next lottery and see if they do? If it's during the week and there is availability, they might throw a code out there.