A few years ago I discovered the joys of The Wet Brush. This inexpensive brush is great for long and/or tangle-prone hair. Since I wrote that, the line has expanded considerably! They have so many fun colors and different brush styles now. I’ve gifted a bunch of them (and plan to gift more). Their original form-factor includes the original that I wrote about as a style with mixed bristles intended for improving shine.
Pop-Fold
My silver-haired friend (who showed me The Wet Brush in the first place) alerted me to the fact that they have a fold-up version. Using a gift card (and therefore not violating my No Buy), I picked one up. I love it!