Thanks for recommendation. Didn't even knew some of those existed.
One of the guy I know who is into spyderco gave me the same advice.
Conclusion: decide to go cheap again and went with ravencrest for otf and start using my kershaw launch 5.
On my desk, I also have a cheap $13-14 kershaw zing (blackfriday+10 coupon for 2) as a box cutting backup.