SAGE Research Methods database contains tools and other materials regarding methods and how to conduct research (such as writing a literature review). Try the interactive Methods map or use the Project planner to map out your project.
You can use open data in your studies. There are several data repositories that allow for the re-use of existing research data (surveys, inteviews, maps, statistics etc.).
If you gather data yourself (for your thesis work etc), make sure to devise a data managment plan.
Read more about open data and data management for our Information searching guide.