I’ve found a few solid brands online for Honda Civic skid plates like Rally Armor and Mishimoto. I got mine from a local shop in Seattle last year and its been great for off-roading and protecting the underside. Just be sure to check the materials I heard aluminum is better but heavier.
I found this awesome skid plate at a local shop in Toronto I’ve hit so many potholes and this thing is a lifesaver I have a buddy who swears by the online options too