You probably have. Here's my honest breakdown of what's on the market — including the things I used to recommend myself.
Back-clip harnesses (most of what's sold as "no-pull"). Comfortable, well-padded — and clipped to the strongest pulling point on his body. Comfort isn't the problem. The clip position is. A padded back-clip harness is just a more comfortable way to pull you down the street.
Head halters. I recommended these for years, and I'll be straight with you about why I stopped. They do redirect — that's the part that works. But they do it by pressing across the bridge of the nose, and most dogs never make peace with that. If yours spends the whole walk pawing at his face, he's not being dramatic. It's genuinely unpleasant. He's not learning that pulling doesn't work; he's learning that walks come with a thing on his face he hates.
Prong and slip collars. They stop pulling the way stepping on a nail stops walking. It works while it hurts. Most owners who come to me having tried one quietly hate themselves for it — and the dog hasn't learned anything except that walks can hurt.
Training alone. Training genuinely works — it's my job. But loose-lead training takes weeks to months of daily consistency, and if your dog is spending those same weeks on back-clip equipment that rewards every pull, you're pouring water into a leaking bucket. I see it constantly: the owner isn't the weak link. The kit is.
The front-clip design takes the one thing that made head halters effective — the redirect — and moves it somewhere your dog doesn't mind. Same leverage. None of the fight to get it on. None of the guilt.