Welcome to Keebtalk! There are a ton of 60% aluminum case options and you can find a lot of good suggestions on this thread I started last Fall when I was in a similar situation (different PCB, but same idea).
I don’t have the 60HE, but it seems like almost any tray mount 60% without a center standoff should work for the PCB. I eventually went with the Freebird60 which is very nice, but it took some work to eliminate the metallic ping I experienced. I think if I had to do it again, I would go with the Klippe T which is like a higher quality (original) Tofu 60.
Edit: Hey @Zozaf, I missed it when I grabbed the link earlier, but Mekanisk posted a video about a month ago about using the 60HE in a Klippe T case:
