Download all Gaia Sources as VOTable, FITS or CSV here.
Query from the command line using find_gaia_edr3 available in cdsclient

Gaia EDR3 in TAPVizieR : query VizieR gaia tables and other join tables (only available through TAP access) like urat,sdss, panstarr, tycho..

Go to the CDS Gaia portal
Gaia/CDS