I want to know if there is a way to keep my roosters with my laying hens without them fertilizing eggs.
No, not if they live together.
I’d like to try to avoid hatching chicks
As the said, don't incubate them. They won't develop.
I know absolutely nothing about keeping roosters, but I want to try to make it work.
Why do you want to keep them? What are your goals with those boys? The only reason you need a rooster is if you want fertile eggs, which you don't. Everything else is personal preference. Nothing wrong with personal preferences, I have a few myself. Sometimes it is easier to find solutions if we know why. Like why didn't you want fertile eggs.
You can have different problems with roosters. That does not mean you will, but that you can. Two roosters may fight to the death over the girls, or to serous injury. That does not always happen, sometimes they get along great with each other. You never know how it will turn out until it happens, or doesn't.
One or both may become human aggressive. All of them don't do that but some do. They may try to injure you by serious pecking (maybe at your eyes), scratching you with their claws, or if they are old enough to have spurs they may try to cut you with them. Or maybe they leave you alone but go after your kids, spouse, or strangers. I keep roosters and it is usually not a problem but if I think one is a danger to my grandkids that rooster is dead. No tolerance.
Whether you have 2 hens for every rooster or 20 hens for every rooster, sometimes some girls can be overmated to the point they are so stressed out that they avoid the flock. Or they may lose enough feathers in certain spots that their skin can be dangerously cut. This does not happen all the time, otherwise chickens would be extinct.
Those older hens may beat up on the boys when the boys hit puberty. Or the boys may be rough on the older hens. Or they may all get along great. You just never know.
You may have no issues with those boys. Having lots of room and them growing up with each other and with the flock may help with that. But I would have a plan ready so if I needed to separate one boy from the other or both boys from the flock I could do that on a moments notice. You just don't know what will happen but it can happen fast.
Good luck!
