Any suggestions on a alternative to a single EVGA 2080ti FTW3 Waterblock?

Sorry, 2080ti.

Do there current water blocks for the 2080ti's fit the FTW3 as well?

You could also look into Barrow, Bykski, Alphacool, etc. as well. Not sure if they have any blocks ready / released yet. I haven't looked too much into their blocks yet. I also personally haven't used any of their products, but I am looking into trying to find some Barrow blocks for my 1080 Ti FTW3s as they meet the height tolerance in my case. The stock blocks are 3mm too tall. For any watercooling parts, you could look into http://www.frozencpu.com/ and http://www.performance-pcs.com/ for waterblocks as well. A lot of places to look for cooling. Personally, I like how our blocks look. I would think a mirrored / chromed backplate would look really good with it.
 
-Jacob B.

@Jacob. 
Of course I want the EVGA block but getting one is an entirely different subject!
I had never heard of the Barrow brand before but with the 2080s I have seen tons of advertisements for them.

mjtillis2006
@Jacob. 
Of course I want the EVGA block but getting one is an entirely different subject!
I had never heard of the Barrow brand before but with the 2080s I have seen tons of advertisements for them.

Yes, I've looked into their blocks quite a bit as the EK blocks, and our blocks, are roughly 2-5mm too tall to fit in my case. The Barrow blocks however are short enough to fit. I haven't seen much in terms of reviews for them, but looking at the blocks, they look pretty solid. I'm just currently at the point where I'm trying to decide if its worth it to purchase them since I may be upgrading to the 2080 Ti's soon, and that would be a little over $200 wasted 🙃
 
-Jacob B.