Write your most sincere, desperate desires and harrowing experiences. If you can find show characters who might fit this, choose those to write about or mold little-known background characters from the FiM or EqG universes. This can help give you a good start toward loving what you write.
If you want popularity, that's a whole other game. Short stories relevant to the latest episodes with catchy titles and popular characters will help, but don't neglect passion and/or humor.
Write your most sincere, desperate desires and harrowing experiences. If you can find show characters who might fit this, choose those to write about or mold little-known background characters from the FiM or EqG universes. This can help give you a good start toward loving what you write.
If you want popularity, that's a whole other game. Short stories relevant to the latest episodes with catchy titles and popular characters will help, but don't neglect passion and/or humor.
Just write whatever you want to write, it'll always turn out better that way