Oh man, that is something I look back on and yikes @ my newbie self. I wish I could find that post and delete it. 10 years and a lot of experience later, I don’t recommend the breed for service dog work, for a number of reasons. It’s not impossible and there have been some successful teams, but a lot has to go wrong in terms of breed type. That is to say, many of the traits breeders are selecting for could easily wash a service dog prospect.

I don’t know any borzoi breeders selecting for service dogs but sometimes there are oddballs who are duds at being sighthounds. That’s potentially a long waiting game.

Instead, I would suggest looking into silken windhounds (with very careful breeder selection there too). Silkens trend more biddable, handler focused, and there’s a better chance of finding one with low/no prey drive, though breeders are selecting for that more.