The order of the Doctor Who: The Eleventh Doctor graphic novels isn't always straightforward. Sometimes there are multiple story arcs and special editions. Your best bet is to look for numbered volumes or seek guidance from fan communities dedicated to Doctor Who comics.
The order of Doctor Who graphic novels can vary depending on the specific series and story arcs. But typically, it's best to start with the earliest published ones to follow the chronological development of the story.
Sure, Doctor Strange has been part of the Avengers in the comic universe. His magical expertise added a unique dimension to the team's capabilities and strategies.
I wouldn't say Doctor Strange comics are niche. They offer unique storylines and magical elements that attract a specific group of fans. But they haven't achieved the same level of mass popularity as the most well-known comic franchises.