A lot people consider the term “space opera” to be on a grander scale. Examples: Starblazers/Space Battleship Yamato; Captain Harlock; Arcadia of My Youth; Legend of the Galactic Heroes; Banner/Crest of the Stars. Most of Leiji Matsumoto’s work.
For series more like Cowboy Bebop or Outlaw Star: Coyote Ragtime Show; Trigun; Gun x Sword; Space Dandy; Edens Zero. Angel Links takes place in the same universe/reality as Outlaw Star but not fondly remembered. You might also like Vivy Fluorite Eye’s Song or Astra Lost in Space.