Compare the missing thing, not just the name
A useful alternative solves a specific problem. One may carry the season you need, another may offer subtitles in your language, and another may provide a rental when a subscription does not. Start with the production and its year.
For a single film
Open its watch options and compare the offers in your country. Check whether the offer is a subscription, a rental, a purchase or free with advertising. Price, quality and access duration belong to that offer, not to every version of the film.
For a show you are halfway through
Write down the season and episode before switching services. A similar poster is not enough when a show has remakes, spin-offs or region-specific season groupings. Match the episode name if the numbering looks different.
For suggestions found on Reddit
Look for the date and region in the discussion. A comment can help you discover a film or understand someone’s experience, but an old working-link report does not establish current availability. Keep your title details so you can make a fresh comparison.
Keep your choices together
Use My List for films you plan to watch and a separate note for an important episode position. A saved catalog title and a playback history serve different purposes.