Cloudureka - <a href="https://magic.cloudureka.com/#!/compare" rel="nofollow">https://magic.cloudureka.com/#!/compare</a> - does it for AWS, Google, Azure, DigitalOcean and Exoscale. Catch here is that it compares with the real cloud cost, assimilates details from your cloud and recommends clouds with better ROI.<p>(Disclaimer: I'm one of the founders of Cloudureka)