Sidebird - Notion to Twitter thread.
Twidd - Enhanced Twitter DMs - Create and use DM templates, all within a browser extension.
TweetNest - Build your real Twitter audience 80% faster
Twitter DMs Library - Collection of the best Twitter DMs on the Planet
Maker Swipe File - 100+ high-performing Tweets to help you grow your audience
Hypefury - No idea what to share on Twitter?