Google Scholar will be a good start. Peer-reviewed journals can be accessed from databases like EBSCO, Emerald, Science Direct and Wiley. The ResearchGate and Academia are good platforms to get the full text of articles which may not be accessible from different databases. Additionally, http://www.freefullpdf.com can also be of assistance to get the full-text pdf version of articles. Professionals do upload articles and ideas on their Linkedin pages
The search engines for databases (e.g., APA Psycinfo, EconLit) allow you to search for both names of authors and key terms. Use of key terms is particularly useful for identifying new authors such as individuals who have written dissertations in your area of interest.