I like vienna reins. Being cheap, I bought shock cord and hard ware from home depot and made my own for less than $15.00 bucks. Using them for not more than 10 minutes a few times a week with my giraffy OTTB. She's starting to get it!!!
Triangle reins, from Schneiders. they are like Vienna reins but don't go under the girth. they go from the upper ring to the bit back to the same side of the surgincle.
Vienna reins are too much downward pull for me, tend to push horses on the forehand.
I also have a pair of safety side reins from the now closed Tack in the Box. Great quality, traditional side reins but no donut. They have elastic and will break in an accident. Great quality. Wish they were avail. elsewear.