Hey.

A few courses options after completing your 12th with PCM are-

Engineering.

Architecture.

Merchant Navy. 

Commercial Pilot. 

National Defence Services- Army, Navy, Airforce

.Bachelor of Science in various streams like-Agriculture, Horticulture, Forestry, IT, Computer Science, Chemistry,  Mathematics, Physics,

BSc in Hotel Management 

BCA

BBA or other management courses