In Yandex.Cloud, you can deploy a Cisco Cloud Services Router (CSR) 1000v virtual router from a ready-made virtual machine image.
There is an awesome manual at this link to Yandex docs.
For my experiments, I ran two instances of CSR1000v. I have configured a connection to one of them using SSH. Both of them are interconnected by a local network.
This is one of the possible ways to study the training courses of the Cisco Network Academy.