It's a very personal decision. All I'd my dogs have been neutered or spayed.
My girls get get spayed sometime after their first heat. Usually between 11-15 months. They are all working dogs. No change in drive.
My last male I neutered when he was 2. He too was a very strong working SAR dog and I saw zero affect once neutered.
My current pup is 8 months. He will remain intact. Unless I decide neutering him will be better for him or me. But it won't happen before he is 2yo.
My personal opinion is that you do what is best for YOUR family and time and skill level. Intact males can be a challenge. While most male behaviors can be fixed/mitigated with training, if your skill level and confidence and lifestyle is such that you cannot do it, neutering can help. I would at least wait until after the growth plates close at around 15 mo.
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