Is there a good alternative to openresty (aka nginx w/ lua) ? I too have fought nginx on upstream health checking and have avoided the cost of Nginx Plus. I'd

Is there a good alternative to openresty (aka nginx w/ lua) ? I too have fought nginx on upstream health checking and have avoided the cost of Nginx Plus. I'd love a good alternative, but we have a number of lua plugins we depend on for rate limiting, metrics, auth, etc.