My most successful project is Where to start reading, a comic book reading recommendations wesbite which reaches 5-20k users per month (spiking alongside movie releases). The Python / Django code is on github. The most popular article, Where to start reading Spider-Man comics is usually right under Marvel and Wikipedia for the search "Spider-Man comics".
My only popular article not moved over to Where to start reading is Classic Doctor Who recommended viewing list, a list I put together while watching all 50 years of Doctor Who.
Formsy (contributor) — A form input builder and validator for React JS
@mighty-justice/fields-ant — Library with CRUD UI components for Ant Design
Movie Rankings — Generates a master-list of my favorite movies by running ELO rankings on pairings generated from a folder of smaller ranking lists.
one-page-cms (Github) — Simple PHP, SQLite, markdown CMS in 300 lines