Reddit reviews Love, Partnership, or Singleton on the Autism Spectrum (Insider Intelligence)

Genevieve Edmond and Dean Worton wrote a book together when they were still a couple. I honestly don't know how relevant it is or what the advice would be like because there was not a happy ending for them. If you want to look into it, it's this book.

Dean Worton has recently co-edited this book about autistic people's experiences of relationships which is lots of different autistic people's experiences of relationships including AS-AS relationships.

Sarah Hendrickx has also written two books on relationships - one which is about her AS-AS relationship with co-author Keith Newton and one co-authored with Stephen Shore which is a more general relationship book.

I have not read these books so I cannot comment on their quality. I also do not know if they would meet your criteria for being a queer-friendly book. I know that Wenn Lawson contributed a chapter to the second book I linked - Love, Partnership, or Singleton on the Autism Spectrum - and he is transgender and his partner, Beatrice, (I can't remember if they're married or not) is also autistic. They wrote a book as well now that I think of it - Transitioning Together - which is about their relationship, with a focus around the time Wenn transitioned.