Sounds to me like you have a rooster in your future...

How much space do you have for more birds? If you want a rooster, by all means get one but you should get more girls also for him. Some keep 3-4 hens with their roosters and it works, others keep more and they get overbred. It's an individual thing that you have to deal with when the time comes. I, myself have 9 girls with each of my flocks but my roosters do have favorites they breed more than the others.
What size is your coop and run?
Measure feet by feet separately.
Pics help here.
Your first step is to plan for chicken math and have the coop and run ready for how many birds you want. Go big because chicken math... And a small additional isolation coop/cage and run is almost a must have with feisty boys, a medical ward for a ill chicken or integration purposes.
Here's a couple ways you could do this... Pick out some more girls and a boy and raise them now. (If you can find them around the same age even better) and start to integrate. But I'm gonna suggest that isolation coop and run when your boy starts harassing the girls. Boys mature faster than girls, he wants to mate and they have no clue what he's doing and it stresses them out. So your going thru that adolescent stage that drives you bonkers with his attitude and antics, but somewhere around a year old he starts to settle down and life is mostly

good....
Or you could take this time, evaluate your setup and plan for next spring to get more plus a boy. Or get more girls and integrate them this year and like said, look for a rooster that's being culled next spring that's past the adolescent stage with a good temperament and introduce him to your girls.
This gives you some experience and time to decide what's best and what breed of rooster you'd like for eye candy. A few different options for you to consider.
Your final thought.... Get your hugs and kisses in now with your girls because when you introduce that man it all stops. A rooster changes the flock dynamics and these girls that love to lay on your shoulder and get snuggles are now 'His' girls and I'm stressing this especially if you have young children. He will not tolerate a young child chasing his girls around.
Remember, he's hardwired to 'protect and service' his girls and will do a much better job than you, so if you learn to respect that and treat him accordingly you'll get a great flock leader and a joy to have in the yard. I love my boys and wouldn't ever not have a rooster in my flocks.
Good luck with whatever you decide... Hope some of this helps.
Rooster tax below
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