Multiple HTTP proxies with/without squid?

[sparkman123]

Thanks to this good tutorial:

https://forum.pfsense.org/index.php?topic=76015.0

plus a few tweaks, I now have been able to get PIA to work on pfsense. Per the tutorial, I have configured the firewall rules such that if a client has a specific IP, they will get routed through the VPN client; if not, they are passed through normally.

Next, I wanted to try to set up a few HTTP proxies which will be routed through several VPN clients like PIA. I was thinking of creating several IP aliases which would answer to proxy requests, and depending on the aliased IP, would send them to a different proxy.

Is this something I can do without squid and just use firewall/NAT rules to forward traffic? If not, can squid handle multiple VPN clients?