As per the previous years cutoff ,the chances of getting a government seat with your expected score which is 500,is quite low in 85% state quota of Karnataka. But nevertheless u can opt for a private medical college in accordance to your financial status. The private medical colleges you can refer to for MBBS in Karnataka include-

Khawaja Bande Nawaz Institute of Medical Sciences ,Gulbarga

M023 Adichunchanagiri Institute of Medical Sciences ,Bellur ,Mandya Dist.

SDM College of Medical Sciences and Hospital ,Dharwad

Moreover, you can also go for BDS in colleges such as-

Dr. M R Ambedkar Dental College and Hospital

HKDET'S Dental College Hospital ,Humnabad ,Bidar Dist.

To know your best admission possibilities for MBBS, BDS & also for Ayush programme you can use NEET UG college predictor tool given below. https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer