worldwide map data portal - SERP Analysis

https://livingatlas.arcgis.com/

https://maps.worldbank.org/

https://earthexplorer.usgs.gov/

https://opentopography.org/data

https://www.naturalearthdata.com/

https://guides.libraries.psu.edu/c.php%3Fg%3D376207%26p%3D5296088

https://www.ncei.noaa.gov/maps-and-geospatial-products

https://earth.google.com/web

https://www.earthdata.nasa.gov/

https://data.nextgis.com/en/%3Fsrsltid%3DAfmBOoqt9lE97rhE0s4lUPc4-M-rTgXCJ-ipOINxZlw9rLmpVt86B22M