^ is your hookup haha
Each brand has a rep who slings their tires for them. usually, you have to buy directly from them. most reps, are contracted to only sell one brand. go to a local road race and you should find them with their trucks and tents set up. race tires aren't usually sold to the public, some places even require race licenses, some just require cash.
there's a lotta politics behind selling race rubber, it's very frustrating.
also, i'm very curious, as to why you don't want dunlops, and would prefer every other brand, while every other brand, is a very different, distinct tire that handles, grips and profiles differently.
you'll need your local track suspension guy to set up the bike for the different tire as well. each needs its own tweaks and adjustments. don't try a tire without having the bike set up for it or you'll end up with false impressions of the slick.
side note:all tires nowadays are good enough that you'll go fast on any of them and it'll come down to your riding style and feedback preference. all of them, will be able to go faster than you can go.
Shut up and ride.
Nun sacciu, nun vidi, nun ceru e si ceru durmiv