Texans vs Ravens tickets

Fan since ‘06 when I started watching football. Haven’t missed a snap since then.

My family has saved up and would like to go to our first game ever. We will be in Houston for Christmas so the Ravens game would be perfect.

Besides the big names places like Ticketmaster, stubhub, and Seatgeek where can I go to find tickets?

Ideally looking for 6 tickets. Would be okay with 4 and I’ll leave the two worst behaving kids in the car. (Just kidding, I’ll leave the in laws out)

I’ve tried to look at Facebook marketplace, seems sketchy.