Best part-time job and about the joining process

Im a student in pune 1st yr, now and fortunately i have my own basic bike like splendor... At first i thought about doing a part time at a shop, cafe or somewhere but i think i wont be getting flexibility in that job so i was thinking about joining bl!nk!t/ insta. Mart as delivery partner... What would be the best choice?

If yes then what's the process and lemme know your experience if you have ever done it.