One popular theme is their relationship as colleagues and how they support each other in difficult situations on the ship. For example, in some fanfics, they work together to solve a complex engineering problem that could endanger the whole crew.
You can try some well - known fanfiction websites like Archive of Our Own (AO3). It has a large collection of Star Trek - related fanfics, and you might be able to find some great ones featuring B'Elanna Torres and Janeway there.
Love and relationship growth is also a big theme. They start as colleagues with some tension between them, and in many fanfictions, we see their relationship evolving into a romantic one. It often involves moments of self - discovery for both characters as they fall in love.
Another interesting fanfiction is 'The Tom and B'elanna Adventure'. In this story, they go on an unexpected mission together away from Voyager. It's full of action and at the same time, it shows the deepening of their relationship as they rely on each other in a dangerous situation.
Guilt is a common theme. B'elanna usually feels a great deal of guilt for hurting Seven. For example, in many stories, she might isolate herself as she can't bear to face Seven after what she's done.
One possible fanfiction could be 'B'elanna's Anguish and Seven's Struggle' where B'elanna accidentally causes harm to Seven during a mission due to a miscommunication. It shows their journey to repair their relationship.
I'm not sure who Lucas Torres specifically is without more information. He could be an ordinary person with an extraordinary story, or someone well - known in a particular community or field.
Tia Torres has had a remarkable journey. She's known for her passion for rescuing and rehabilitating animals, especially pit bulls. Her story involves facing various challenges and making a significant impact in the animal welfare world.