I want to pursue architecture. Which are the good colleges for the same? Should I take JEE Mains again?

Yes, you must get through JEE Mains paper 2 or NATA to get admission in any of the top colleges for architecture.

Best colleges for architecture are: Department of Architecture, IIT Roorkee Sir J College of Architecture, Mumbai Lovely Professional University, Jalandhar Faculty of Architecture, Manipal University Sushant School of Art and Architecture, Gurgaon Department of Architecture, NIT Tiruchirappalli Depa

Please refer to the link provided below for an exhaustive list of colleges which offer courses in architecture. You should be able to navigate to a college of your choice using the filters on the webpage. Additionally, you can download their brochure which contains important information like course