The following platforms are reliable for locating the exact .srt file matching your file name:
If you use media players like VLC or MPC-HC , you can often right-click the video while it's playing and select "Download Subtitles" (or use the VLSub extension) to automatically find the match based on your file's hash.
You can find subtitles specifically synced for the release on several dedicated subtitle databases.
Top 20 Sites to Download Subtitles for Movies, TV Shows and YouTube
: Since your file likely originates from YTS, this is the most direct source for pre-synced subtitles for that specific rip.