KS-3 Gateron Yellow 5-pin switches are a great cheap linear switch. Featuring a black nylon top and bottom housing, along with a yellow POM stem.
Price includes:
10x switches
(10x lubing) depending on your choice
Type: Linear
Actuation: ~0.55N / 55g
Bottom-out: ~0.62N / 63.5g
Pre-travel: 2mm
Total travel: 4mm