Note: the link above is for Twine 1.4 (which is the older version). It may or may not work for the current Twine version (which is 2.6.2).
Here's a resource list for Twine 2 (mostly SugarCube/Harlowe): https://www.tumblr.com/manonamora-if/700577877042888704/interactive-fiction-twin...