The Geospatial Data Downloader is a marketplace platform for discovering and retrieving spatial datasets for a particular region of interest.
It is completely Open Source and available on GitHub.
It allows users to select, clip, and ship collections of geodata quickly and conveniently, providing a single zipped geopackage output that includes a QGIS project which is ready to use immediately.
If you are looking for alternative data sources, you can review (or contribute) to the list of publicly available data sets for your region of interest. The list of data currently curated is available on Kartoza GeoData list.