One idea could be to have the characters from 'Throne of Glass' (TOG) and 'A Court of Thorns and Roses' (ACOTAR) meet in a magical realm created by a powerful ancient artifact. For example, Aelin from TOG could be on a quest to find a way to defeat a new, powerful enemy and accidentally stumbles into the world of ACOTAR. There, she meets Feyre and they initially have a bit of a clash due to their different upbringings and leadership styles, but then realize they can work together to solve a problem that threatens both of their worlds.
Well, Avenida Brasil might have a story that dates back to the founding or expansion of the area. It could be that it was part of a planned urban layout. Over time, it may have witnessed various changes in the community, such as demographic shifts, economic booms or busts, and cultural evolutions. For example, it could have started as a simple dirt road and gradually developed into a major thoroughfare with modern infrastructure.
When writing an ACOTAR and TOG crossover fanfic, character development is key. You can't just throw the characters together without considering how they will grow and change in this new situation. For instance, if you pair up Chaol from TOG with Lucien from ACOTAR, think about how their different backgrounds and experiences will influence their relationship. Maybe Chaol's loyalty to his kingdom will be challenged by Lucien's more fluid view of loyalty among the fae. Also, don't be afraid to experiment with the magic systems. Try to find unique ways for the characters to use their combined powers. This will make your fanfic more engaging and original.
Good fanfic writing for a TOG and ACOTAR crossover requires a deep understanding of the source materials. Research the lore, the politics, and the relationships in both series. For the plot, think of something that challenges the characters from both worlds. A good way is to introduce a new, powerful enemy that neither world has faced before. In terms of character development, let the characters grow and change as a result of their interactions. For example, if Rowan from TOG meets Azriel from ACOTAR, they could learn from each other's combat skills and ways of thinking. Also, pay attention to the pacing of your story. Don't rush the important moments and build up the tension gradually.
One popular 'brasil light novel' series could be 'Xamã'. It often features elements of Brazilian culture and mythology, which makes it quite unique among light novels. The characters are well - developed and the plot is full of twists and turns.
Perhaps a crossover where the magic systems cross over. The valg from 'tog' could somehow seep into the world of 'acotar' and the characters from 'acotar' have to learn about the valg and how to combat it using the knowledge that Aelin and her crew have from 'tog'. This could lead to some really interesting battles and alliances.
The full story of Avenida Brasil could involve its construction. It might have been built to connect different parts of a city or region, facilitating transportation and trade. It could also be linked to the influence of a certain culture or nationality, if the name has a specific origin related to Brazil.
You can try looking for them in local Brazilian bookstores. Some big chains might have a section dedicated to local literature, which could include light novels. They might also be able to order specific 'brasil light novel' titles for you if they don't have them in stock.