don’t overlook a good machete as a survival knife. sometimes an advantage to have literally a short sword. if possible get one with a hand guard to protect you from dropping it from a hit to the hand.
I think the hand guard is a good idea for a machete tho I have never owned one which had that feature.
One thing I always do is to wrap the handle with athletic tape. I will say I have never had one slip out of my hand no matter how sweaty it got.