Recent reboot of Space Battleship Yamato (anime, not the 2010 live action movie) was great. It’s available, all 26 eps and subtitled, on a couple different streaming sites.
Speed Racer and Battle of the Planets, and to an extent Voltron (the lions, not the stupid little clown cars) were staples of my childhood. But nothing could compare to Starblazers, even though it was dumbed down through editing and dubbing from the original Yamato.
I have some Star Blazers on 16mm prints.
Mysterious Cities of Gold is pretty good for old school.