Bad news, gentlemen. While there are both men's and women's national teams, nobody's told the NCAA that men's field hockey is a sport. They only offer scholarships to women (source). This means that, quite frankly, your options are limited.

Lack of scholarships and endorsements means fewer good players, which in turn creates a greater lack of scholarships and endorsements. You can see where we're going with this. You can go for private scholarships, but you should know that collegiate field hockey is a woman's world.