I don't really know. But you could try reaching out to comic enthusiasts or following related social media groups to see if there's any news about the production of those comics.
As of now, the production of Firefly comics hasn't completely stopped. Sometimes there might be breaks or intervals, but new content does come out from time to time.
Yes, they do. The Simpsons comics are still being made, although the frequency might have changed.
Yes, they do. Spawn comics are still being made, although the frequency might vary.
Yes, they do. Marvel Comics is still an active publisher, releasing new titles and storylines regularly.
Yes, they do. Archie Comics is still being produced and has a fan following.
Yes, they do. Peanuts comics are still being produced and remain popular among fans.
Yes, they do. Garfield comics are still being made and enjoyed by fans around the world.
Yes, they do. Moon Knight comics are still being made by various comic publishers.
I think they do. I haven't heard that they've stopped making them.
Occasionally, new Batman Beyond comics are still being made. However, it depends on the publisher's plans and market demand.