There are well over a staggering 2-billion results in Google on a "CLOUD" search.
Some popular related searches are about; what is the cloud and the best cloud?, what makes a best cloud the best one, best cloud storage free, .best cloud storage 2019, apple cloud, .best cloud storage 4 business, aws cloud...
and microsoft cloud, 1tb free cloud storage, best cloud storage 4 photos, dropbox cloud storage, cloud pricing comparison, amazon cloud, free cloud storage space.
Several examples of other cloud names which sold are: cloud.co.za $9,000 - cloud.com.au $25,000 - cloud.io $25,000 - cloud.la $1,999 - cloud.me $22,500 - cloud.org $25,000 - cloud.pro and other cloud domains.
CLOUD.best is available and on-sale due to its owner retiring soon. In fact, a desire for retirement income is a reason the owner can do an interest-free monthly payment plan (and a buyer's benefit).
P.S. No worries about using the domain while paying. You will have the same use as if you paid purchase price up-front, and be able to use your own DNS immediately upon making your first payment.