I recently watched the drama called ‘Knockin’ on Locked Door’ and wanted to watch more. However, I feel like I’ve almost watched all such shows (Sherlock, Rinsho Hanzai, Junkyouju Takatsuki Akira no Suisatsu, etc). Could someone please recommend more that give a similar vibe with double male leads (hoping that there are some that I haven’t come across). I prefer underrated ones, but any that fit the theme work. Thank you!

Not sure if this is what youre asking for but maybe Ouroboros

im planning on watching it soon but it has double ML and its also mysteryy 

may not be exacltly what you want but they range from  crime mysteries to buddy cop etc