This short novella (in your textbook) is a perfect FRQ3 choice if you need another! It's Existentialist, magical realism, psychoanalytical, Surrealist... it's A LOT. The textbook has an excellent set of texts, including some personal letters of Franz Kafka's and graphic novel version.
Both of the videos below provide additional information about Kafka and his writings, and the additional links are analysis of the novel Blackass which uses Kafka's original premise as inspiration for a new twist on the story. Reading these will give you some GREAT thematic ideas and essential questions that you can pull from when writing about "The Metamorphosis"!
Blackass is A. Igoni Barrett's satirical novel ala Kafka’s The Metamorphosis- the main character, Nigerian Furo Waikombo not waking up as a gigantic beetle, but instead as a white man. The exploration of the novel's central question: what does it mean to be black? is a modern riff on Gregor's existential crisis in the original. Both texts ask readers of all races to consider these questions...
Who am I? Who decides?