It's amazing how many folks suggest knives starting well over the OP's upper limit of $90. Here are a few within your budget:
Starting at the top is a Buck #192 Vanguard in 420HC (~$65), although Cabela's had a copy in S30V as their 'Alaskan Guide' for ~$90 and Buck did make a run in 154CM. I have all three - and they came shaving-sharp. Next is the Benchmade 201 'Activator+' in D2 (~$80) - mine needed some sharpening right out of the box, but it is a nice knife. A traditional 'Hunter', the KaBar #1232 in AUS6 is a bargain ~$35 and is the only import (Japan) shown. The Queen #92 in D2 is a great knife, even if the handle is smallish - ~$45. The Buck 192s and the BM Activator+ came with nice leather sheaths; ho hum leather sheaths for the other two. The Vanguard is available with a rubber handle and nylon sheath as the #692 for a few dollars less, too.
The Vanguard is just a tough knife - with a great finger guard to keep your hand off the blade, even when wet & cold. Before my 'enlightenment', ie, before acquiring a bunch of more expensive fb knives, it was my favorite woods-stomping/camping knife. It's two great blade attributes - being stainless and easy to resharpen (Spydie 'Sharpmaker'.) - are hard to beat. It just feels 'right' in the hand, too.
I purposely left my all-time-favorite Buck 119 out of the list due to it's length (6") and price ($34 at WallyWorld!) being out of your listed range. Seriously - do handle one, if you can - it's a classic! Even old Les Stroud, TV's 'Survivorman', can be seen carrying one on some of his treks. Good luck!
Stainz