Author-level metrics attempt to quantify impact by analyzing citations arising from an individual author's publications.
Advantages: These metrics can give a more holistic idea of author impact by including a wide range of journals.
Disadvantages:These metrics are biased toward more prolific and more established authors. They also are not generalizable across disciplines.
Use Web of Science's Author Search to find all the publications by a particular author and create a Citation Report showing the author's most highly cited articles, citation trends, average citations per article and other metrics, including the h-index.
Altmetric tracks a range of sources to capture and collate this activity, helping you to monitor and report on the attention surrounding the work you care about.
Altmetric for Researchers - Track and demonstrate the reach and influence of your work
see Tools for researchers (bookmarklet, badges and API)
Google Scholar Profile
Impact Story takes your publications, slides, code, and web posts and analyzes them based on various metrics including citations, saves, bookmarks, tweets, views, and shares. Once you have created an ORCID or Google Scholar Profile, you can easily import your publications for analysis.