Even if you don't have a common surname, author IDs help uniquely identify you and your publications. IDs ensure you aren't confused with another researcher with a similar name, and that citations aren't "lost" due to name misspellings (it happens more often than you think!).
Author IDs help promote you and your research: they provide an easy way for you, and scholars interested in your work, to see a complete list of works. Some author ID systems make it easy to generate citation counts and other metrics.
Author IDs also ensure your publications and citations are appropriate credited, even if you change names or move to another institution.
Source: https://guides.library.georgetown.edu/c.php?g=318870&p=2130342
ORCID provides a persistent digital identifier (an ORCID iD) that you own and control, and that distinguishes you from every other researcher. You can connect your iD with your professional information — affiliations, grants, publications, peer review, and more. You can use your iD to share your information with other systems, ensuring you get recognition for all your contributions, saving you time and hassle, and reducing the risk of errors.
Why every researcher should sign up for their ORCID ID | Impact of Social Sciences
Ten things you need to know about ORCID right now | Impactstory blog
Source: https://orcid.org/
Google Scholar Citations provide a simple way for authors to keep track of citations to their articles. You can check who is citing your publications, graph citations over time, and compute several citation metrics. You can also make your profile public, so that it may appear in Google Scholar results when people search for your name, e.g., richard feynman.
Source: https://libguides.usc.edu.au/researcheridentifiers/gsch