Old school survival knife from Russell Green River Works, as was used for more than a century by those who traveled West in America......still being produced and still well under $100....
8" Marttiini Lapinleuku, another design thats been around for a very long time and is still not expensive.....
Mora #2 with a small 3/0 companion blade in a Bushgear Leatherworks sheath, and a #2 in a Bagwell kydex sheath. One of the best inexpensive and best performing outdoors type knives around, still being today, still cheap.....
A bit more expensive and quite useful is the Stromeng KS5F
Moving upwards in cost, a spalted birch puukko from Rick Nurmi
Adventure Sworn bushcrafter
Stacked birchbark puukko by Jelio
Randall Model 1 with 2Hawks double bit