Well, I think Bumblebee would have a shot at winning in a battle of wits. Bumblebee has been shown to be very adaptable. In a fanfic, he could use his knowledge of Megatron's weaknesses, like his overconfidence. Bumblebee might pretend to be more vulnerable than he really is, luring Megatron into a false sense of security. Then, when Megatron least expects it, Bumblebee could strike with a clever plan. Megatron, on the other hand, is used to being in control and might not expect such a devious tactic from Bumblebee.
I also like 'Dinobot's Legacy'. This fanfiction focuses on how Dinobot's actions during the Beast Wars influenced the future generations. It shows how his courage and sacrifice became a legend among both the Maximals and the Predacons. The author does a wonderful job of creating new characters that are related to Dinobot in different ways.
A really dramatic plot twist could be if Bumblebee and Megatron had to team up in the fanfic. Maybe there's a greater threat that neither of them can face alone. It would be so unexpected because they're enemies. Bumblebee would have to put aside his hatred for Megatron, and Megatron would have to trust Bumblebee at least a little bit.
I'd suggest starting with the most popular ones. Check out the ones with the highest ratings on fanfiction platforms. For example, on FanFiction.net, you can sort by popularity. A lot of the top - rated Dinobot fanfictions are really good introductions to the world of Dinobot - centric stories.
There are quite a few interesting Dinobot fanfictions. Some focus on his relationships with other characters in the Beast Wars series. For example, there's a fanfiction that details his unlikely friendship with a Maximal. It shows how they overcame their differences and worked together. There are also ones that give more backstory to Dinobot's past before the Beast Wars, which can be really fascinating to read.
The 'Beast Wars' universe is vast and full of potential. Fanfiction writers can create all kinds of stories set in this world. For Dinobot, they can expand on his relationships with other characters, like his rivalry with Megatron or his friendship with Optimus Primal. There are so many untapped storylines that can be explored.
Tarantulas is an interesting character to include. He has his own devious plans that often intersect with Megatron's, sometimes as an ally and sometimes as a rival. Tigatron, with his connection to nature and his more spiritual side, can bring a different perspective to the story. And Waspinator, for his comical yet tenacious nature. Despite being often defeated, he always comes back, and his interactions with Megatron can be both humorous and revealing of Megatron's character.
One key element is the interaction between Jack and the Dinobot. Since they are from different species in the Transformers universe, how they communicate and understand each other is important. Another element could be the setting. Whether it's in a battle - torn area or a hidden place in the Transformers Prime world.
Well, it could be about Jack initially being scared of the Dinobot due to its large and intimidating form. But as the story progresses, he discovers the Dinobot's noble nature. Maybe they team up to fight some common enemy in the Transformers Prime universe.