How should I create auto-failover with Cloudflare with site mirroring

Dear Community and Tech Guys,

I would like to have the following solution for my webshop.

I want to mirror my primary server and enable load balancing (with auto failover) in my Cloudflare account. I already know hot to enable and how to setup a basic load balancing in my cloudflare account.
What I do not know: Does Cloudflare offer solution also to create a “secondary mirror server” ? If so which feature is that ? If this is not possible with Cloudflare can you suggest a easy and not so expensive solution? (We are small company)

Thank you GUYs in advance!
Tom.