You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of Mahoutsukai no Yome crossovers. Just search for 'Mahoutsukai no Yome crossover' in the search bar, and you'll get a list of relevant stories.
A crossover with 'Harry Potter' is also quite common. Imagine Chise going to Hogwarts and learning about a different kind of magic. She could share her knowledge of fae and magical creatures from her own world, and there could be some really cool interactions between the characters from both universes.
I'm not entirely sure as I haven't played it myself. But generally, a visual novel often has a story with various characters and plotlines. It might be about magic or some kind of supernatural elements given the word'mahoutsukai' which could mean wizard or magician in Japanese.
I'm not entirely sure as I haven't read it specifically. But generally, a light novel often involves unique characters and an interesting story. It might be about the relationships among the characters in the 'ane yome quartet' and their adventures or daily lives.
The unique art style might be one of the reasons. It can draw players into its magical world. Also, the storylines are often complex and engaging, full of mystery and charm.
You might be able to find it on official gaming platforms. Check popular digital game stores like Steam. They often have a wide range of visual novels available for purchase and download.
You could try looking for it in local bookstores that specialize in Japanese light novels or import books. Some large chain bookstores might also carry it if they have a section for international literature.
Most yome juu jap pc visual novels also have a strong focus on character development. As you progress through the story, you get to know the characters better, their personalities, their dreams, and their flaws. This makes the players more emotionally invested in the story and the characters.