You can find English subtitles for Rick and Morty S06E08 "Analyze Piss" on major platforms like OpenSubtitles, Subscene, and Addic7ed. These sites offer various versions, including hearing-impaired options.
If the subtitles are not syncing with your video, you can manually adjust the timing in VLC Media Player using the 'G' or 'H' keys, or use the built-in VLsub tool to search for matching files. Rick and Morty subtitles English S06E08