Do not lose the language requirement
If Hindi audio is the reason you chose a film, make it part of the comparison. A service offering the original-language movie without the desired dub may not solve your problem. Confirm subtitles separately as well.
For drama, compare the whole run
Look at season coverage, episode count, and release schedule on the selected service. A title page may describe a series even when only part of it is currently offered. Availability can also differ by country.
Find another story when you are flexible
Explore related titles, Korean-language series, animation, or horror. Save a few options to My List and compare their premises. A suitable second choice can be more useful than repeatedly checking an unavailable version of the first.