A massive library. You can search specifically for "Deadpool 2 (2018)" to find files tailored to different versions (BluRay, Web-DL, etc.).
Once you have downloaded the .srt file, follow these steps to sync it with your video player: Deadpool 2 subtitles English
Many jokes fly by in seconds.
One of the most popular platforms. Look for the "English" tag and check the user ratings to ensure the timing is accurate. A massive library
The humor in the Deadpool franchise is famously dense. Ryan Reynolds delivers lines at a breakneck speed, often while wearing a mask that can muffle audio. English subtitles help you: Deadpool 2 subtitles English
If your copy of the movie didn't come with built-in subs, several reputable databases offer free SRT files: