Hi aspirant, since you have 171591 rank in your JEE mains exam so based on that you can get into some of the best colleges mentioned below;

• Rajeev Gandhi Prodyogiki Mahavidyalaya, Bhopal
• Lakshmi Narayan College of Technology, Bhopal
• JIMS Engineering Management Technical Campus, Greater Noida
• Guru Ghasidas Vishwavidyalaya, Bilaspur
• Guru Tegh Bahadur Institute of Technology, Delhi

Etc.

For more colleges you can also take help of below mentioned link;

https://engineering.careers360.com/jee-main-college-predictor?utm_source=qna&utm_medium=jee_cp

Thank You.