There is no such answer as to what is a "best" tip for a particular shaft.
Everybody likes a particular hit and the different combinations of ferrules, shafts, and tips all go into making that "hit".
What hits right for you, may not hit right for me.
I currently use a Predator 314-2 FAT shaft and it came with an Everest tip and I thought that tip sucked (it continually miscued and hit very hard, to me). I replaced it with a Black Kamui Super Soft and I thought that tip was too "bendy" and "sticky" when it was left at its original length. When I cut about half of it off, it played much more to my liking.
When it finally wore down to the nub and I had it replaced a month, or so, ago, I put on a Kamui Black Medium tip. I don't like the way it hits. To me, it hits a bit hard and is what I call "pingy". When I get the chance to buy another tip, I'll go with something else that is more akin to what the Kamui Black Super Soft was when it was cut down. Maybe a Kamui Black Soft might work. I don't like buying expensive tips and then getting rid of half of it before you shoot a ball.
Years ago, when I used a different cue and a regular shaft, I always put on my own tips and used Le Pros. I used to buy them by the box and "cherry pick" them and use the best ones in the box. I quit buying them when the quality went even further down.
I like tips that give a solid hit, without a "pingy" sound. I also don't like tips that give a lot of "rebound" to the cue ball. I prefer to "stroke" the ball around the table and be able to "feel" the ball. I don't want the tip to bounce the ball around on its own.