Genre - Fantasy
Sub-genre - Crossworld / Portal
Description - Sub-genre of fantasy where characters from the real world find their way into another, magical world, through a portal of some kind and often find themselves involved in a struggle to save this world or characters within it.
Common Tropes - (coming soon)
Published Examples - Classic example would be The Chronicles of Narnia and Alice in Wonderland
Stories on Gay Authors - https://gayauthors.org/stories/browse/subgenre/crossworldsportals/