Great cheatsheet for going on a raid

Pokemon Types - Pokemon Red, Blue and Yellow Guide - IGN

Symbol type chart - vertical format for mobile devices

Pokemon Let's Go, Type Chart: Effectiveness & Weakness

Normal Types in Pokémon GO: Present and Future

Battling a gym? Use this chart to compare pokémon types and select the best! : r/pokemongo

Pokemon Go - Type Chart - Pokemon post - Imgur

Pokemon Go Type Advantage Chart : r/TheSilphRoad

Imgur: The magic of the Internet

Pokemon Go Type Chart, Pokemon Go Weakness Chart

Easy to read Type Effectiveness chart for newer players. Easy to read and understand (courtesy of GoHub) : r/TheSilphRoad