Tangerine Dream (DE): My favorite recordings are Logos and Poland (both live recordings), but there’s many other great ones, e.g. Force Majeure, Phaedra, Quinoa, …
Redshift (UK): Love almost every single album they made. My all-time favorites are Redshift Wild 3, Redshift Wild 2, and Wild (all live recordings).
Peter Baumann (DE): I particularly like the first few tracks of Romance '76.
If anyone shares my taste, please please please post some more recommendations! :)