Yes, definitely doing online certification courses along with the engineering makes your resume very strong. As you will be able to develop additional skill, knowledge and information about that specific field. Mention the field in which you want to do the certified courses. Then after detailed information will be provided.

It is good and valuable in your career . As a engineering student u should have atleast 3-4 certificates. As it will be  helpful for your future.

Choose your own course which u are interested.

All the best