Question for the #MastoAdmin / #LoadBalancer / #Hosting / #Technology collective hive mind:

I'm re-building a lot of the architecture for my Mastodon instance as well as some other services. Everything will be VM's in Proxmox (Or LXC Containers but for the purposes of this they're effectively the same thing). I need a highly available load balancer solution (Preferably with a nice way to sync the configuration across multiple instances of the load balancer software that isn't just a git repo ideally) where I can define a series of IP Addresses and ports to map to specific FQDN's. LetsEncrypt support is also important.

Right now I'm using NGINX (Or a series of NGINX's in front of one another) but it's not the nicest experience and I'm aware there may well be better options out there so keen to know what the standard is / best option might be.

I am aware of HAProxy but haven't used it before and have looked at Traefik but it looks like that's more for docker containers / K8's..?