Hello aspirant

You have to first decide in which field you want to do certificate course. There are many fields like business management, data science, computer science etc.

Professional certificate courses

Face book social media marketing professional certificate

IBM Data Analyst professional certificate

Sales force Sakes Development Representative Professional certificate course

Arizona State University TESOL professional certificate

Google cloud Networking  professional certificate

Certificate courses in arts stream

Certificate courses in science stream

Certificate courses in commerce stream

Certificate courses in law stream

For online application you must visit official websites if respective programs.