Connect 3 sites to eachother, via OSPF?

Hi,

I have 3 sites, with 3 VyOS routers.

I currently have site 1 connected to site 2. Site 1 is also connected to site 3. This is all via site-to-site IPsec VPN.

However I would like to connect site 2 to site 3, so that if one fails, I still have a route via the other way. As far as my knowledge goes, site-to-site isn't the way to go, but I should use OSPF.

It's hard to find any good guides for VyOS, and my knowledge is very limited, so is anyone able to advice me if OSPF is the way to go?

Thank you in advance.