One common theme is the exploration of their different personalities. Raven is often depicted as more reserved and serious, while Beast Boy is fun - loving and carefree. Their relationship development in these fanfics usually involves them learning to understand and accept each other's differences.
You can try some popular fanfic websites like Archive of Our Own (AO3). There are a large number of Teen Titans related fanfics, including ones about Raven loving Beast Boy. Just use the search function and type in relevant keywords.
There's also 'The Unspoken Bond'. In this fanfiction, their relationship develops in the midst of fighting against a common enemy. It shows how they rely on each other and how their feelings start to shift from just friendship to something more romantic. The action scenes combined with the budding romance make it a great read.
It's mainly about the relationship between Beast Boy and Raven in a graphic novel form. It might explore their unique bond, their adventures together, and how their personalities interact.
One possible analysis is that it explores a unique relationship between two characters. Fanfics often delve into the emotional and romantic aspects that might not be fully explored in the original source. It could show how their different personalities, Raven's more reserved nature and Beast Boy's more exuberant one, interact and create a compelling love story.
One possible fanfic could be about Beast Boy and Raven getting stuck together while decorating the Titans' tower for Christmas. Maybe Beast Boy accidentally turns into a reindeer and Raven has to use her powers to control him. It could be a really funny and heartwarming story of their friendship during the Christmas season.
A 'beast boy x raven lonely beast fanfic' could be full of emotional depth. Since Raven often has a complex and somewhat withdrawn nature, and Beast Boy is more outgoing. In this fic, their dynamic might be about Beast Boy bringing out a different side of Raven. It could also involve some kind of adventure or situation where they have to rely on each other, especially when Raven is in her 'lonely beast' form which might come with its own set of powers and challenges.
You can find 'Beast Boy loves Raven' fanfiction on fanfiction.net. It has a large collection of Teen Titans - related fanfictions, including many focused on this pairing. Just use the search bar and type in relevant keywords like 'Beast Boy loves Raven' and you'll get a list of stories.
There's also 'The Hidden Love'. In this fanfiction, Raven has always had a secret love for Beast Boy but is afraid to show it because of her own emotional barriers. It shows how they both struggle with their feelings and the challenges they face in expressing them.