Need some suggestions on when to neuter

So I'm debating on when to neuter my puppy, I know it's still to early for him. He is currently 9 months old and going through his stubborn teenage phase 😅

I've been told the earliest I can get him neutered is 18 months and I'm leaning towards it. Is there any point on getting him done at all? We're okay on not getting him done as he is good with behaviour part. We are getting another male Samoyed eventually like in 6 years time 🤣