It's possible. Some fanfiction writers are attracted to unique pairings like this. You can first search on general fanfiction sites. If you don't find any there, try looking on social media platforms where fans might share or discuss their own works or know of others' works related to this pairing.
You can begin your search on Archive of Our Own and FanFiction.net. Additionally, Tumblr can be a useful source. There are often fanfic recs (recommendations) on Tumblr blogs dedicated to certain anime or characters. Some of these might include the kouichi madanbashi x chieko kakazu pairing. Also, Reddit has some sub -reddits related to fanfiction where you can ask for help in finding this specific fanfiction.
It depends on your preferences. The manga offers more detailed art and storylines. But the anime brings the action to life with animation and voice acting.
Cute cartoon clothing is known for its playful designs. It could have cartoon figures all over, or maybe just a cute logo on the front. The fabric is often chosen to be lightweight and breathable, making it perfect for everyday wear.
The omnibus version usually compiles multiple volumes of the manga into one book. So, it's more convenient but might not have the same individual volume feel.
Well, a married couple caricature usually exaggerates the couple's physical features or expressions to show their unique personalities or relationship. It might focus on their shared hobbies or quirks too.
You can try searching on image search engines like Google Images or Bing Images. Just type in 'blondie comic strip images' and you should get a bunch of results.