Honestly I don't know the authors or books, but I know that the the Storiybundles are usually not bad.

The Universe of Adventure Sci-Fi Bundle - Curated by independent authors John Wilker & Dave Walsh: When it comes to science fiction, there are a lot of different flavors. Through the ages, science fiction has been many things to a great many people. It’s never been just one thing. Just one type of story. There's sci-fi that's quiet and contemplative, sci-fi that sticks to our understanding of modern science, then there's sci-fi that spans different galaxies and times, or even sci-fi that warps our understanding of reality.

For $5:

• Ghost Pirate Gambit by Jessie Kwak
• Broken Ascension by Dave Walsh
• Constelis Voss 1 by K. Leigh
• Convergence by C. Gockel

For 20 $:

• Ptolemy Lane 1-3 by Cameron Cooper
• Devon Island Mars Colony by Si Clarke
• Psycho Electric by Randolph Lalonde
• Shifting Reality by Patty Jansen
• League of Independent Operatives - Books 1-3 by Kate Sheeran Swed
• The Big Sigma Collection Vol. 1 - Enhanced by Joseph R. Lallo
• Fire Ant by Jonathan P. Brazee
• Space Rogues 1-2 & Grand Human Empire 1-2 by John Wilker
• Carl Sagan’s Hunt, Amazon.com

Archive link: https://storybundle.com/archives/The-Universe-of-Adventure-Sci-Fi-Bundle