Kindle2Notion - Export your Kindle clippings to a Notion database
Blinkist - Key insights from 6,000+ bestselling books and podcasts
Hazel - Lighweight update server for Electron apps
Instaread - Read or hear key takeaways of any book in minutes
Readwise - Effortlessly rediscover and organize your Kindle highlights
wits.io - Weekly book summaries recommended by founders and makers