One common theme is fashion. Given Tracee's known for her amazing style, many fan fictions incorporate her love for fashion, like her going to exclusive fashion shows or being a fashion icon in a fictional world.
One great Tracee Ellis Ross fan fiction is 'The Stylish Adventure'. It imagines Tracee's character going on a global fashion tour. It has amazing descriptions of her outfits and the places she visits.
They're not the same. Everett Ross and Thadius Ross have separate identities and storylines in the comics. Their powers, if any, and character arcs are completely different.
I'm not sure specifically what 'ellis stories' are without more context. It could be personal stories about someone named Ellis, or perhaps it's a collection of fictional tales related to a character or place named Ellis.
Since I don't have a lot of information about this specific story, it's hard to say exactly who Mike Ross is. He could be an ordinary person with an interesting personal story that involves some sort of growth or change symbolized by 'big boy pants'.
I'm not sure specifically who 'ann b ross' is just from this phrase. It could be an author. Maybe it's someone who has created works within the realm of 'fantastic fiction' which might include elements like magic, otherworldly beings, or extraordinary adventures.