Caption - Open-source captioning tool to help find the right subtitles.
Subtly - Learn English with smart subtitles on movies and TV shows
VEED Subtitle - A simple & fast way to add subtitles to your videos online
Bazarr - Bazarr is a companion application to Sonarr and Radarr that manages and downloads subtitles based on your requirements.
Auto Subtitles by Type Studio - A fast & easy way to add auto subtitles to your video online
CaptionPop - Watch YouTube videos with multiple subtitles simultaneously