There are lots of remedies to your issues but that is up to you to decide.
I would lock them in at night and not let them out for at least a week. I would spend that time sorting out males and either culling for the freezer or placing an ad for free roosters to a new home.
If you then choose to let them free range at will again make sure no roosters are free ranging with the hens and that the hens have had at least 2 weeks or more to be cleaned out from their last mating.
If you do not want any more chicks then get rid of all the roosters. Still it will be 2 - 3 weeks before the eggs are no longer fertile.
I would lock them in at night and not let them out for at least a week. I would spend that time sorting out males and either culling for the freezer or placing an ad for free roosters to a new home.
If you then choose to let them free range at will again make sure no roosters are free ranging with the hens and that the hens have had at least 2 weeks or more to be cleaned out from their last mating.
If you do not want any more chicks then get rid of all the roosters. Still it will be 2 - 3 weeks before the eggs are no longer fertile.