A few of my modern folders:
Left to right: Spyderco Air, small Sebenza, Caly 3 superblue, Lionsteel TiSpine, Slyszszczsz bowie, 940 Osbourne, Emerson Horseman, Paramilitary 2 S35VN, ZT 0562CF. The brown S35VN paramilitary 2 is by far my favorite.
My only custom folder, a Will Moon Mk7 (serial number 1, not that these have held a lot of value):
Traditional slipjoints:
Top row: #33 two blade, #68 all steel clip, #15 crown lifter, #15 ancient barlow, #15 spey, #15 scout, #15 sheepsfoot, #15 razor, #47 viper
Bottom row: #82 dixie stockman, #48 wharncliffe trapper, #89 spear, #89 whittler, #77 clip barlow, Northwoods Willamette, #92 talon, #66, #18 coyote, #09 esquire
Most carried is the #09. My favorites are the #33, #68, #15 crown lifter, #48, and #92. Runners up are almost everything else

. The #18 is getting a lot of use in its first few weeks. The #15 crown lifter is a great companion knife for camping. The clip point profile is good for everything, it has a cap lifter, and the sunbrite handles glow in the dark.
I plan to sell off several of these to fund my slowly growing Fiddleback collection. Some are not getting a lot of use, especially some of the modern folders.