Visiting Delhi mid-January, any recommendations for places/cafes to visit?

I’ll be visiting Delhi for a friend’s marriage in January. I’ll be staying there for a couple of days. Any places/cafes I need to look out for while I’m there? Although I’ve lived in Delhi for about 6 months in 2021, I never got out of my home/work place in Nehru Place/Jasola. I’ve just been to India Gate and Humayun’s tomb. Any recommendations are welcome. I’ll be staying at Zostel for a day and then in chattarpur area but I don’t mind traveling throughout the city for good experiences.