Discotek Media picked up the Captain Harlock Endless Orbit SSX series back in 2017 and they’re now doing some expansion on availability through streaming.
Plot concept: At the end of Arcadia of My Youth Captain Harlock and the crew of the space ship Arcadia had been banished from Earth.
Based on the original work by Leiji Matsumoto, Kazuo Komatsubara handled the character designs with Toei Animation producing it.