Hi

There are a number of courses after your 12th science PCMB but which course will be good  for you and you should go for depends upon following factors

*Your interest
*What do you want to become,

For example, if you want to become a doctor you will have to do mbbs , if you want to be a journalist , then you will have to do bachelors in journalism, if you want to be an Engineer you will have to do Btech, if you want to become a fashion designer then you can go for Bachelor of Design BDes

After 12th science stream  , PCMB , you can go for following top courses for your graduation other than btech, mbbs and b pharma depending upon your interest :-

*BDS.
*B Arch
*B Planning
*BDes
*integrated mba
*BBA
*BCA
*BAMS
*BHMS
*Bachelor of Veterinary Science & Animal Husbandry
*Bachelor of Physiotherapy
*Bsc IT
*Integrated MSc
*Defence ( Navy, Army, Air force)
*BDes
*Integrated llb
*integrated mba
*Bachelor of Hotel Management.
*Bachelor of Journalism (BJ)
*Bachelor of Mass Media
*Paramedical courses
* Integrated B. Ed
*BASLP i. e bachelor in Audiology & Speech Language Pathology

Also,

instead of conventional BSc courses like BSc physics, bsc chemistry or BSc botany etc you can go for following BSc courses

*Bsc Nursing
*Bsc agriculture
*BSc biotechnology
*BSc dairy technology
*BSc microbiology
*BSc. Medical Laboratory Technology
*BSc. Cardiac Laboratory Technology
*BSc. Dialysis Technology
*BSc. Neuro Technology
*BSc. Nuclear Medicine Technology
*BSc. Operation Theatre Technology
*BSc. Perfusion Technology
*BSc. Radiotherapy Technology

So , take your time and depending upon above aforesaid  factors, you can make a choice of course for yourself

For more courses go through

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

Thankyou