so much confused about what to do for finding better colleges if I couldn't get into colleges through jee mains

Dear applicant,

You can apply for direct entry based on Board Exam marks as well. Select colleges from India just have Boards as the eligibility criteria and their own entrance exams. For instance VIT, BITS, Thapar, Amity, Chandigarh University, KIIT, Manipal etc have their own entrance exams conducted every year for the intake. You may visit the respective colleges websites. It is a recommendation for you to explore in search from Careers360 website as well! Here you get all sorts of solutions for college admission related questions as well. Careers360 clearly mentions and informs about the fee structure, eligibility criteria (including entrances, if any). It is a great tool that you'll find helpful!

All the best with your endeavors!