OPNSense ban list is WAY too aggressive.

I believe you can use different lists, however I will say that I no longer use any sort of DNS adblocking because it broke some applications my wife needed for work. I imagine I could fiddle with the block lists and find ones that are less problematic, but I determined that it ultimately causes more problems than it solves for me.

A lot of people are suggesting pihole. I used pihole for awhile and it was neat. Then I bit the bullet and got an actual mini-pc router with a bunch of NICs on it and put OPNSense on it. I now use Unbound DNS on OPNSense and it has made my network a lot easier to manage & more stable.