Dear Aspirant,

There are various DIPLOMA courses you can pursue based on your interest. Since you didn't mention your area of interest I am going to provide you with some very informative website links and you should definitely check them out to figure out what's best for you.
Links: https://school.careers360.com/articles/diploma-courses-in-medical-field-after-10th-and-12th

https://engineering.careers360.com/colleges/list-of-diploma-engineering-colleges-in-delhi

https://engineering.careers360.com/articles/polytechnic

https://www.google.com/amp/s/university.careers360.com/articles/ignou-courses/amp

Hope these links Helps!
Best Wishes