Ok after some reading, it seems I don't need to filter https. All I really need to do is block certain https domains from my kids on my home network while allowing all other traffic, prevent kids from circumventing proxy, monitor traffic stats per IP, and no issues with online games like logging into Warframe.
To block https domains, I found some info on setting the ssl intercept to "splice all" and putting ".*" in the acl whitelist, then use squidguard to block https. However, I'm not exactly sure how to set this up with squidguard or if it will fix my Warframe login issue.
I'm trying to learn this so I don't really want to use something like OpenDNS if I can help it. I'm running psSense in a VM with working backup so I'll try any suggestions because I can easily restore my pfSense firewall.
Thanks.