I had very few experiences with autotheory but Testo Junkie is a remarkable work.
It combines personal writing about the author experiences with medically transitioning, deeply investigating the biological, psychological and social aspects that impacted and changed with the process.
He discusses gender, the capitalist control over it, the pharmaceutical industry and the pornography industry with dialogues with Foucaut's, Derrida's and Butler's theory.
A lot of his later works also reside in the realm of autotheory like An apartment in Uranus and Can the monster speak (but I haven't read them).
He also recently directed the movie Orlando, my political biography
