 If you liked
Cowboy Bebop
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 ...then you might like
Star Wars: Visions
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Residing in the space opera & sci-fi genres; both have strong roots in, or style inspired by US-American pop culture. In parts, the Star Wars franchise uses the same wild-west influece Cowboy Bebop picked up decades later. While Visions is a pure anthology, CB includes anthology-like storytelling from episode to episode. Considering these factors (and surely a lot more that escape me right now) you might discover a large overlap in atmospheres and environment.
Obviously, the two are both quite popular / mainstream.