The best version of "Kandhar Alangaram" is subjective and depends on personal preferences. However, I can suggest that you try searching for the song on Starmusiq, which may have various versions, including the original soundtrack, remix, and cover versions.
Starmusiq is a popular online music platform that provides access to a vast collection of Tamil songs, including "Kandhar Alangaram". You can search for the song on Starmusiq and enjoy listening to it.
If you're looking for the lyrics of "Kandhar Alangaram", you can find them on various lyrics websites or apps. The song's lyrics are written in Tamil and convey a romantic message.