Alternative to VXLAN, OTV, or L2TPv3

[JBL]

I'm searching for a Meraki alternative to VXLAN, OTV, or L2TPv3.  I have a client that wants to span a subnet across two sites connected via private layer-2 circuits.  This is for DR purposes.  The server VMs are replicated so the IP addresses must remain the same.  Client needs to refresh hardware so I'm looking for a Meraki alternative.  Only one subnet needs spanned, other subnets can remain routed.

I've read that a site-to-site VPN with NAT translation could be a solution.  However, I'd like to understand all options, using any Meraki products.

Thank you for any assistance you can provide.

[jdsilva]

There is no alternative with Meraki to extend L2 between sites like that. You'll need to go elsewhere for that functionality. 

[CptnCrnch]

Regarding Layer 3, as you already mentioned there‘s AutoVPN built in. Reliable and easy to set up but not comparable to OTV etc.