Kiss the Morning Star by Elissa Janine Hoole

Jess, Chunk, and the Road Trip to Infinity by Kristin Elizabeth Clark

Looking For Group by Rory Harrison

How to Repair a Mechanical Heart by JC Lillis

A Love Story Starring My Dead Best Friend by Emily Horner

Bonus: The Disenchantments by Nina LaCour, which features a non-narrating major bisexual character, and the upcoming (2018) And She Was by Jessica Verdi, which features a non-narrating major transgender character (though her POV is present via e-mail throughout)