Ckpool (the normal pool) is no longer running, there is only the solo version of it online, and you probably don't want to use that unless you know what you are doing, the correct link to it is https://solo.ckpool.org/

Kano pool is a small pool that doesn't find blocks way too often and thus you will likely have to wait for way too long to get paid, in theory, eventually, the payout should be higher than the other pools since it has the lowest fees, I personally don't like to bear such variance, but to each his own idea.

Viabtc is a good pool that has all 3 payment methods PPS+ , PPLNS and Solo, you said you got the link to it, so i won't post it.