My favorite traditional folding knife patterns in no particular order.

Stockman
Congress
Whittler
Standard Sized Barlow
Copperhead
Muskrat / Moose
Mini Trapper
Scout / Camping / Swiss Army Knife
Large Toothpick
Marlin Spike Riggers Knife
Half Hawk
Jack

Generally speaking I dont like large folding knives because Id rather just have a fixed blade at some point where their heft and size makes them inconvenient for pocketing.

Somewhere between 3" and 4.25" closed length is the sweet spot. Any smaller and you get into a 3 finger knife and that's sucky.