The best courses, you can go for, after the 12th PCB are provided below:

• MBBS.
• BDS.
• Bachelor of Veterinary Science.
• Bachelor of Occupational Therapy.
• Bachelor of Physiotherapy.
• Bachelor of Environmental Management.
• Bachelor/BTech Biotechnology.
• Integrated BTech-MTech Biotechnology
• Bachelor of Homeopathy medicine and surgery
• Bachelor of Ayurvedic Medicine Surgery
• B.Sc.

  ( Bachelor of Science )

  1. Botany/Zoology/Chemistry

  2. Nutrition and Dietetics

  3. Biochemistry

For more information regarding the courses you can opt for, after 12th with PCB are provided below:

https://school.careers360.com/articles/courses-after-12th-pcb

I hope this helps. Wish you a great eve!