If you are new to the online world and want to work online then in this article I can tell you some tips for working online.
Join Facebook groups and create a post in which you can mention your skills and also attach a picture of your best work.
Create a LinkedIn profile and create a similar post as you have created in the Facebook group and also attach relevant tags.
If you see a post related to your skill then directly message him and explain about how you can help him in his project.
Join freelance websites where you can get jobs. Some popular freelancing websites include Fiverr, Upwork and Freelancer.
Also post on social media sites and mention your relevant work samples.