Kershaw Blur and Leek are good options. All depends on what you need it to do. I just picked up a benchmade mini barage and it is one of the fastest deploying assisted opening knives I've owned and comes with a good steel cm154 but, it's gonna run you up near/above the $100 range...
I traded into a Kershaw Skyline(can find them around $40) the other day and this might be the lightest EDC type blade I own! It's scary light! Under 1. Something oz I believe? It's a super nice blade for the price range! While, it isn't an assisted opening knife, it does have a "flipper" for one handed deploying.
Top: Mini Barrage
Bottom: Skyline
that skyline is insanely light iv fell in love with the cryo 2