A few indie artists that I've gotten into recently are J Rabbit, Coffee Boy and DOZ. Although I don't know if I would call DOZ indie... They don't belong to any agency which would classify them as an indie artist, but I just don't know what they are. All I know is I like them for some odd reason that I don't know.
i've recently found Zitten
not sure if busker busker classifies as k-indie
피네 is super good
EZ Hyoung, Nell, Thornapple, electric eels, peterpan complex
ugh i love k-indie so much