If you are not already heavily invested in a specific style of bibliography management, we will recommend using BibLaTeX. As stated by Overleaf, this "package provides localization in several languages, it's actively developed and makes bibliography management easier and more flexible."

The other option is to use BibTeX (and often the package natbib), which is both reliable and widely used. However, as it is not being further developed (as well as other disadvantages that you can read about here), we will not have it as our main priority.