I must have 40 drip tips. Probably more than half are never used anymore due to my shift to more open draw - but that means I still have quite a selection I sometimes use!
I know, it's nutz, but a lot of them are $3 from FTech.
And when I try a new atty, I will usually try it with at least 4 or 5 tips before finding the one that best suits the atty and the build - regarding size, fit, draw, and aesthetics...
Here are a couple not too many people have, but both great:
Synervape, $10 variety
Vinyl by SJ delrin tips