Originally Posted by Joppatrailrider
But again it more than just breeding him to a mare and that's it, and also don't really care that he has to be pastures alone :/
This is a common misconception.
Stallions don't actually need to be kept completely solitary - they only need to be unable to access mares that you aren't wanting them to cover. It is perfectly fine to have your stud in with geldings (or spayed mares if you have any) as long as everyone is properly introduced and you can keep an eye on things to make sure that nobody's getting chased off of feed and bullied to the point that it's unhealthy (so make sure that everyone's in good weight and that they're all happy and alert).
Some people will put mares already confirmed to be in foal in with a stud, but you have to be careful with doing so because if she loses the foal, she'll start cycling again and he'll breed her. Many people that I've seen have found that having their stud in with other horses have improved their overall attitude (most likely reason is because horses are herd animals), but you will have to be aware and adjust as needed for your guy.