Couldn't find what you were looking for on ALTopedia? Here are some other sites that might be able to help you.
Our sister site! Dive into lesson planning, career development, and the nitty-gritty of teaching English.
Englipedia was the biggest resource for English-teaching resources until its sunset in 2018. It still has a mountain of activities for a wide variety of grammar points and school levels, so check out the archive!
A wide variety of resources for living and working in Japan, including activities, lesson plans, and podcasts.