Class 12-science

Medical courses available to aspirants after passing their 10+2 in science are as follows:
MBBS (Bachelor of Medicine and Bachelor of Surgery) 5.5 years.
BDS (Bachelor of Dental Surgery) 4 years.
BHMS (Bachelor of Homeopathic Medicine & Surgery) 5.5 years.
BAMS (Bachelor of Ayurvedic Medicine and Surgery) 5.5 years.
MD (Doctor of Medicine) 3 years.
MS (Master of Surgery) 3 years.
DM (Doctorate in Medicine) 2 to 3 years.
B.Pharm (Bachelor of Pharmacy) 4 years.
B.Sc Nursing 4 years.
BPT (Physiotherapy) 4.5 years.
BOT (Occupational Therapy) 3 years.
BUMS (Unani Medicine) 5.5 years.
D.Pharm (Ayurvedic, Siddha Medicine) 2 years.
BMLT (Bachelor of Medical Lab Technicians) 3 years.
DMLT (Diploma of Medical Lab Technicians) 1 year.

Scope is something which is very relative. If I talk about engineering, the branches that are having scope right know may not have scope after the completion of B.Tech and if you ask me personally then don't go for engineering because it has gained the saturation level and you would struggle to get the job here. So, firstly think of the field which you have interest in and then you can check out the scope from the websites like Shiksha and others.
Some examples:
If you have interest in drawing and are creative, you can go for B.Arch or interior designing.
If you have interest in computer, you can opt for BCA and you can think ahead.
If you want to go for management then you can go for BBA
you can go for B.Sc if you like science and not the applied science used in engineering.
You can also go for hotel management if you have managerial and leadership skills.
You can also join Indian Army for ground duty via exams like NDA.
Note: Don't follow others and make sure your decisions are not influenced by other.