Hello aspirant!  Let me inform some of the names of the college that you will get with your jee mains paper 2 obc ranking - you can get admission in architecture to National institute of technology Hamirpur , national institute of technology Raipur based on previous years cut off. You can check the details here :

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-cutoff-for-b-arch-b-planning/amp