A shop vac works. I've found that horses will stand better if not tied. It's a mental game-if not tied the horse knows it can escape and therefore stands. My horse's coat changed from a dark bay to more reddish..
Interesting to see different likes & dislikes! Several recommend Cowboy Magic, but the smells turn my stomach and I've never felt a coat that didn't feel gunky, lol.
My favorites have remained consistent for decades: Natural hair brushes, non-metal combs, and Healthy Haircare Moisturizer for everyday grooming. Orvus paste shampoo, Quicsilver whitener, and Showsheen for whites/Pepi for everyone else at shows. Miracle Groom for last minute stain removal. I've yet to find other products that give me comparable results.
In real life want a vacuum.
In my dreamland, I want an Insta-Shed Spray that completely removes winter coats within minutes.
I only use cowboy magic detangler and shine in the horse's tail. If you put a small amount on their tail, after a good washing and conditioning, while it's still wet/damp, and rub it in really well, you will have great results.
The best grooming brushes I found on the Nessentials website, these brushes are wonderful with natural hair and fibers and do such a better job than synthetic bristles ... absolutely amazing is the goat's hair finishing brush.