COPR repository where future Fedora OpenSSL package for the rebase to 1.1.0 is baked.
Just install it and work on porting your application to the new API. There will be also a compat package for the 1.0.2 provided here.
This is a companion discussion topic for the original entry at https://copr.fedorainfracloud.org/coprs/tmraz/OpenSSL-1.1.0/