I'm currently looking into the Asus Direct CU II because the Strixx version simply costs 50€ more. I'm not sure if the higher price is worth it
since you have a freesync monitor why not go for a 390 or 390x? they are cheaper as well.
I can recommend the msi and sapphire nitro , but i do now know much about the cooler construction of others. they tend to be cheaper than a DirectCU II as well
strix, powercolor pcs+ are good tho. tho strix tend to be more expensive and psc+ tend to be huge.
ps. im looking at mindfactory tho. Im not sure which website you are using
maybe you can check on Geizhals.de