There are indeed Rick and Morty comics. They're a great way for fans to immerse themselves deeper into the world of Rick and Morty. The comics sometimes explore concepts and characters that might not have been featured prominently in the show.
Rick and Morty didn't start as a comic. It first gained popularity as an animated series. The show's unique storyline and characters made it a hit before any comic adaptations were made.
I'm not aware of any Rick and Morty comic in the newspaper. Maybe it's possible in some very specific or niche newspapers, but it's not a common occurrence.
I think they're good. The comics expand on the universe of the show and offer new adventures for the characters. The humor and creativity are still top-notch.