best way for redundancy?

[Joachim Lindenberg]

Hello
I do have a wireguard VPN that connects multiple sites. Unfortunately some 
routers are not available all the time, causing network disruption. I´d like to 
improve connectivity via redundancy, i.e. add multiple routers that connect the 
networks.
What are the options to do that using wireguard? Can I have multiple peers with 
different keys and endpoint but same Allowed IPs? Will wireguard select the one 
available?
Any suggestions?
Thanks, Joachim