The Demolished Man is also by Bester and is his first published novel, IIRC, and while it doesn't have as much space theme stuff as TSmD, it has much of the other mind-melting materials that are inside TSmD. I personally consider it a kissing cousin to 'Stars, except the focus is on telepathic future cops instead of teleporting future spacehands. Generally people put TDM and TSmD together as Bester's masterworks.

Use of Weapons by Iain M. Banks is part of the justly famous Culture novels, and is one of the darker works in that cluster. Thematically it's very similar to TSmD, it definitely fits with the space part, though the writing is a bit more sophisticated than Bester's flagrant homage to the two-fisted pulp stylings he seems to have loved so.

Jack Vance's Star King is about a lonely man in space taking vengeance on interstellar crime bosses. Again it has quite a few Bester-at-his-best vibes and much simpler writing than Banks' works.

Maybe The Expanse series by James S.A. Corey? He does say that Bester is a major influence, so...

Harry Harrison's The Stainless Steel Rat is sort of what you get if someone wants to channel Bester, but wear a smirk while doing so. There's a LOT of space travel and a LOT of the Bester vibe, but always paired with a wink and a nudge. A slightly looser fit, but likely still enjoyable for you, is his Deathworld series. Three novels set on three planets with ... well ... very deadly characteristics. And loads of space opera in the background to make you realize you're in the retrofuture.

Perhaps the Star Wolf trilogy by Edmond Hamilton? It's classic sci-fi from one of the original pulp writers about a mercenary who is exiled from his harsh home world. The writing is simple but very well done and exciting, I really enjoyed it.