There are a number of great guitar picks on the market with grips built in, the Dunlop Jazz, Dava Control, etc. But you shouldn't have to choose your pick based on whether or not it has a grip.
You can make your own grips at home in seconds, allowing you to get the best of both worlds- your favorite pick AND a grip.
All you need is a craft punch and self-stick sandpaper.
I personally prefer the Punch-Bunch 20mm oval and 3M Stikit sandpaper.
You can order the Stikit by grit as well, enabling you to choose your perfect gripping strength.
Just punch the ovals into the sandpaper and place them on one or both sides of the pick.
Quick and easy- you'll never again have to choose your favorite pick by whether or not it has a grip.