Depends on your relationship with the hens, depends on the space you have, and it should depend on if you can cull a rooster that does not turn out.
If you love your chickens as individual birds, and keep pets I would not recommend a rooster, or if you flock is small - less than 5. It is not so much the number of hens - but rather that people with 5 birds tend to have small set ups and IMO roosters take more room than hens.
Having a rooster will dramatically change your relationship with the hens. Where as in a hen only flock, the hens come to and depend on the human. Add a rooster, and they will look to him, hang on his every cluck. He often will tend to keep between you and the hens. He lives with them, and they adore him. You just become the feeder.
not all roosters are good, some are just OK and others are outright garbage.
A lot of roosters can be very aggressive to either people, or hens or both. If you get one, you need to be able to cull them. I am pretty firm in the belief, that there is no perfect way to raise a perfect rooster, it is the luck of the draw.
Get pullets first, grow them out, let them lay.
When, they are mature in the next year and one becomes broody, give her fake eggs to set wait 3days then order st rn chicks, or pullets and a few cockerals to put under her in 3weeks time. Place the chicks under the hen at night, removing the fake eggs. Let the hen raise the chicks and pick one of those for your rooster.
This however, I think tends to give you a bit better edge on getting a better rooster - but again, people that tend to do this, tend to have flocks of a dozen or more, and the space to keep them. They often free range in real pastures. This is more of a farm way of keeping chickens, and these people are more comfortable with the possibility of loss, the ability to cull if needed, and so while it might look like they get perfect roosters, the truth is, they have removed the others.
Mrs K