I hope you find someone suitable to take your pigs, or find some land you can rent so you can keep them.

But... if you were to end up handing them over to someone you don't know (either in person or through a site like this one), frankly you don't know where they'll end up. So, very hard though it is, you may in the end be serving them better by sending them to the abattoir yourself than passing them on to someone who may do just that anyway, and/or may fail to look after them well. I say this not to upset you, but to help you feel better about the decision you take if it does end up that way.

I do know how you feel, I really do. In my case I prefer to be sure that no harm or ill-treatment has become befallen them, so would sooner see them to the abattoir myself.
Meantime, good luck finding them good homes - I hope it works out for you
