You know, I am currently in my detective books fan era and if you'd known bengali na, I'd have sooooo many detective stories to suggest!!!
Like Feluda and Byomkesh are the classic ones of course but there's this Kiriti-Subroto duo and Jayanta-Manik duo, Pragyaparamita Mukherjee, better known as Mitin (she's a lady tho and she's married and has kids) who in the kids books works with her niece Tupur as her assistant and in the ones for mature audience, she works with her husband, Partho as her assistant.
Then there's Colonel Niladri Sarkar, an aged yet jolly retired military officer who works with Jayanta Choudhury(another Jayanta, not the one from Jayanta-Manik), who's a reporter and an utter hopeless romantic but quite unlucky in love.
Then Damayanti Dutta-Gupta, who's another female investigator and she works with her husband, Samaresh.
There's Arjun, who's actually a sidekick to another detective Amol Shome but has his own books about detection.
There's Dipankar Bagchi, known as Dip Kaku who works with his friend's daughter, his niece, Jhinuk.
There's Jagabandhu Mukherjee, known as Jagumama who works with his nephew, there's Shabor, KiKiRa, etc. And mind that all of these are series. Not standalone books.
We bengalis love detective stories uk! And it's soooo interesting to see all the different types of investigators! I wish I could share all these with you!!