Most accurate tool to measure SV & CPC?

Expireddomains.net is an excellent tool but I feel as it inaccurate for measuring metrics that could be used to leverage a sale via outbound.

I’ve got my eye on a domain, ED says it has an organic SV of 1.3k and a CPC of 5.36. But, when I input the name into another site for measuring, nothing comes out.

I used keywordseverywhere for this example but what other tools are available? Preferably free but a small monthly fee is fine if the data is to be trusted.

Following that, how do I know which resource is the most accurate?