It very much depends on the vet - if you can find a vet who has lots of experience and a good track record in complication free piggy neutering ops, then neutering is an option.
Otherwise I would strongly urge you to think twice and thrice about it and rather boar date! The normal operations risks apply, but additionally the risk of post op complications (mainly abscesses, but also swellings due allergies to suture material, internal infections or even gut adhesions; a prolapsed penis and toileting problems can also happen) is quite high, and - from my own experience - not every vet is able to deal with the complications appropriately. My Hywel had a very close shave no thanks to the operating clinic due to a band of swelling that caused extremely painful gut adhesions; if I had relied on the vets who operated on him, he'd have died that weekend. I spent about double the amount on dealing with the complications than for the operation itself. Sadly, this is not an isolated experience. Thankfully, most boars go on to enjoy a life with sows, but more often than it should be, it is not the easy ride you'd wish for and it is not something that should be undertaken lightly.