Leash setups to walk 3 larger dogs

So I’m anticipating that we’ll be adding a 3rd dog to our household soon- it’s a dog I already know. The three dogs are between 45-65 pounds. Two of them are easy to walk, and one can require more management around other dogs, critters etc.

I know adjusting to me walking all 3 together won’t be the easiest and we will only do this in wide open parks where I wouldn’t have to worry much about managing them near roads, other walkers, etc.

I’m was looking for some recommendations as far as leash setups goes. Please don’t just say “take two walks” I know that’s the sensible option but I want the time efficient one to be an option too haha. TIA!