Hello and welcome to BYC! Glad you joined.
If you had an oversized coop and a LOT of space (think 1/2 acre or more, not sq ft) it might work. The boys may well work things out amongst themselves but may still abuse the pullets when they reach sexual maturity. You will want an isolation pen to toss the boys in if that happens.
Good advice already given. You should probably wait to see how each cockerel turns out once matured before making a decision. Not all boys have the same temperament and you'll want to keep the best one. Here's a few links to offer some insight:
In addition to the other tips you've received, just want to add that I've read where others have been able to keep multiple roosters by dividing them up amongst smaller groups of hens, sometimes with their own housing.