Fender 351 Dura-Tone Picks FRD

The ideal thickness for everyday use on any guitar. Really good grip.

The only negative is that letters are erased very quickly, because of this it is difficult to distinguish with other picks of the same color

It’s Fender so you know it’s going to be good. I tend to play with pretty strong attack on the strings and burn through picks quickly, but these hold up better than most. Sturdy, reliable and solid.

Excellent pick from Fender and I swear by them.

These picks are made from a material called Delrin instead of the more common celluloid. They feel much stiffer and last longer without being thicker. These picks also have a matte finish which improves the grip a little.
Personally, I find them a bit too stiff for guitar but I like that extra stiffness for when I'm playing bass with a pick. It's not the best looking pick I've seen but it's not ugly either.
I recommend those if you're looking for stiffer picks.

I play with these picks and they're fantastic. The only down side is that they sometimes feels too hard.