For open carry you should at least consider a fixed blade, a bit faster to deploy. A folder requires two steps, pull it from the sheath, and manipulate the opening. A fixed blade is just one step, pull it from the sheath it's good to go. The only fixed blade I would spend $500 on would be a Randall Made, as I could always get a full return on my investment.
...Not to stray from the op's thread question, but I'm sure that most will agree that the deployment
steps referred to above, can also be reversed, thus making the folder a 'one step' deploy with the
Emerson Wave feature, as well as many fixed blade sheaths will have a snap / other retention
added to keep the blade secure, which would add the second step to deploy the fixed blade knife.
Ofcourse, depending on the sheath design, it may or may not allow for a secure 'hold' of the knife,
without using the intended snap strap(s)....Just my thoughts regarding the deployment comment.
As for advice on the knife you are looking for, I would provide as many details as you can think
of to add to your original post, and let the Expertise of the very knowledgable members offer you
some good, solid advice for your upcoming purchase. Happy Hunting

....B.T.B.