ORCID provides a persistent digital identifier that distinguishes you from every other researcher, and through integration in key research workflows such as manuscript and grant submission, supports automated linkages between you and your professional activities, ensuring that your work is recognized. When you submit an article for publication, you may be asked to register for an ORCID if you don't already have one.
There are numerous sources for setting up additional researcher profiles to highlight your work and to network with others in your field. Generic sites include ResearchGate and Academia.edu
Some researchers choose to set up their own personal web page to serve as a way to highlight research, and other activities. Two of the ways to do this are through Google Sites and Github. Examples: