You can find roosters that won't crow too loud or too often, but not necessarily before FIRST finding a bunch that DO crow loudly. A whole lot has to do with the individual.
Having a rooster won't affect egg production, although obviously the eggs you get with a rooster will be fertile whereas the eggs you get without won't. Fertile eggs, collected and refrigerated promptly, are essentially indistinguishable from infertile eggs unless you know exactly what to look for, so they are still good eatin'. If you free range your chickens, a rooster may offer some protection (but if it comes to, like, rooster vs dog, dog usually wins). OTOH a rooster may wear the back-feathers off your hens unless you have enough of them.
Good luck and have fun,