I recently came across the AρρEEARS platform when looking for a quick bulk-download of MODIS satellite imagery. AρρEEARS or Application for Extracting and Exploring Analysis Ready Samples is a web platform hosting a wide range of geospatial datasets (e.g. MODIS, Landsat, ASTER, etc.). To access the website, you just need your USGS login creadentials. A full list of the datasets available can be found here.
The first thing I liked about this platform is the fact that you can pre-process the data before placing the order (e.g. clip to a region of interest (ROI) with a custom shapefile, re-project, pre-select particular bands, etc.).