My “How to Write” Pinterest board already has a ton of links, so I highly suggest checking it out. Here are a few lists, infographics, and ‘cheat sheets’ that have helped me in the past. There aren’t many right now, but I’ll add more as I find them.
Note: You aren’t going to find any “1 million ways to say ‘said'” here. My general rule is to use dialogue tags as little as possible.
Grammar and Prose:
Emotion Synonym Chart (Starts basic and gets more specific)