These are good places to start your research.
These databases have more in depth coverage of some topics, like entrepreneurship or the healthcare industry. They are in alphabetical order.
Not sure what discipline covers your topic? Not finding enough information? Interdisciplinary databases contain articles from the sciences, social sciences, and arts & humanities. They are a great way to see who is talking about your topic and to expand your research.
Web of Science and SCOPUS, while interdisciplinary, are weighted towards science.