If your kid is a great soccer player, get him, or her on the best team that he or she can play on, and let the coaches coach.
The most important thing for a parent, is to be honest with yourself about the ability of your child.
I have one who could play anywhere, and one who is very good, but not D-1 good.
The postition they play doesnt matter, as long as they have the ability to play at the level they are being recruited for, and there are plenty of colleges out there looking for all kinds of players.
I will add, that while your kid is young, encourage them to play all over the field.
A player who can play multiple positions with skill, is valuable.
My oldest has played every postition except keeper, in her time, and can move from holding, to outside, to attacking mid, striker or defender at any time.