See if you want to do NEET 2023 but while preparing for NEET, if you want to do some course, then I would suggest you to do-

• BSc in PCB
• BSc in Biotechnology
• BSc in Microbiology, Biochemistry, Zoology, Botany,Physiology, Anatomy

This courses are some way related to your subject matter and as a result, if you do this courses, the you may get some benefit in your NEET 2023 examination as well and also you can prepare for the NEET 2023.

For more courses which you can do after PCB in 12th consider the link below;

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

I hope this helps. Wish you a great day!