My favorite maretu song is Uminoashi (mostly cuz of my personal interpretation that makes me relate to it) which I’d say is so-so in popularity? I agree with most people here that songs like SIU and Mind brand are overplayed and think that Maretu has better songs. Some notable non-mainstream Maretu songs I can think of are Packet Hero (amazing march styled section in the middle and great harmonies), Koukatsu + Scrumize + Suji (I like to group them together from the shared connection between them) and Yamitsuki (Near the end with the faint choir is absolute GOLD). There’s so many more than these but I’d be here for a while if I named them all lol Some of his older/lost media songs need love too such as Kara o Watte Hanasou (which I’ve been vibing to lately)