Reverse Proxy Suggestions

I'm looking to map one public IP to multiple back-end web servers. I've done this in the past with PFsense and squid. I know I can do this with squid on RHEL, but I'm curious if this is the recommended method. These back-end web servers could be running simple HTTP servers or Web App servers. There's always more than one way to complete a task in Linux, so I'm looking for suggestions, and also how community members have implemented reverse proxies themselves.