Opera VPN should be blocked by OpenDNS already (if you choose OpenDNS). TOR cannot be separated from other VPNs. When you block TOR, you block all other VPNs. However, you can block all VPNs but allow the VPNs you need by adding the domain names in the “Allowed URLs”.
You can block specific VPNs by adding the domain names in the Blocked URLs list. However, this cannot be done for TOR since the domain names cannot be determined. But if you block TOR, you will block all VPNs.