Know where to find lots of rubber stories?

The #rubber tag on Gay Spiral Stories is a good place to start. https://www.gayspiralstories.com/newStory/search?tagList=rubber&tagSearchMode=or&useAlias=true&searchTerm=

You can also find some on MC stories under the fetish category, which usually involves clothing fetishes of one sort or another. The blue underlined stories are the ones with M/M content: http://mcstories.com/Tags/ft.html

There’s some good stuff on CYOC too, and the search function has been greatly improved as of late. Happy hunting!