A unique OC is key. If the original character has a distinct personality, backstory, and motives, it makes the fanfiction more interesting. For example, an OC who has a different cultural background than the typical Hogwarts students can bring a fresh perspective.
The fanfiction should also stay true to the Harry Potter universe. This means getting Snape's character right. He's complex, with his own secrets and loyalties. A good Severus Snape OC fanfiction will not make him act out of character. For instance, he wouldn't suddenly be overly friendly without a good reason. It should also have a good plot that fits within the magical world, with proper use of magic, Hogwarts settings, and other elements from the original series.
There are some new characters and plot developments. But you'll have to read it to discover the specifics!
You might try looking on some dedicated comic scan websites, but be careful as many of them might be illegal and could get you in trouble.
Maybe Veronica becomes a vampire in some alternate storyline of Archie Comics. Or it could be that a vampire shows up and interacts with Veronica and the other characters.
It's a rather inappropriate and unusual combination. Manga hentai often explores adult and sometimes uncomfortable themes that don't align with the typical portrayal of Robin and Chopper in the mainstream manga.
The hilarious adventures, witty dialogues, and unique characters make them funny. The comic's humor often comes from the unexpected situations the duo find themselves in.
It's a bit complex. Sometimes the adaptations stay very close to the manga, but there can also be some creative changes.
There's no direct connection. Foghorn Leghorn is a Looney Tunes character and Enter the Dragon is a martial arts film. Their combination in a comic would likely be a very creative and unexpected crossover.
One of the top villains in Avengers comics is Ultron. His intelligence and determination to destroy humanity make him a formidable foe.
I think 'Your Lie in April' is quite similar. Both have touching emotional arcs and beautiful art styles.