Are these sheep to produce meat for your table and occasionally to sell? Do you plan to have them breed all year round (need a barn or shelter during the winter) or are you only set up for spring and summer lambing (no shelters).
If you plan to have lambs all year round, once the ewes are old enough to breed you can leave him with the ewes all the time. No buddy needed that you have to feed. On the other hand, if you plan to separate him for annual breeding, then a buddy would be a good thing. Not another ram, because that ram would need to be penned separately while breeding the first one. A wether would be best, since he can run with the flock during breeding.
If you plan to run the ram with the sheep year round, your choices get even easier and more economical, not to mention tastier! Buy a young wether to grow out for meat this year. Put him in with the ram lamb. By the time he goes in your freezer, the ewes are old enough to breed and you can turn the ram in with them. Next year after they lamb, choose one of your own ram lambs, castrate it to raise for your freezer again, and put him in with the ram when you keep the ram apart from the ewes before the et breeding season.