If you liked Project Hail Mary by Andy Weir, try these!
Velocity Weapon by Megan O'Keefe
The last thing Sanda remembers is her gunship breaking up around her as she evac pod expanded, sealing her away for salvage-medics to pick up. She wakes up 230 years later on an empty enemy smartship, The Light of Berossus-- or Bero, as he prefers to be called. The war is lost. The star system is dead. But in the vastness of space, anything is possible....
No Way by S.J. Mordan
XO, the greedy and ultimately murderous corporate architects of humanity's first Mars base, made a costly mistake...they left Frank Kittredge alive. And now XO will do anything to keep their secrets safe. If there's one thing in Frank's favor, it's this, he's always been prepared to go to the extreme to get the job done. That's how he ended up on Mars in the first place. It just might be his ticket back. In this sequel to the terrifying sci-fi thriller, One Way, returning home from Mars may Mean striking a deal with the very people who abandoned him
The Last Astronaut by David Wellington
A tense and thrilling sci-fi adventure of space exploration and first contact, perfect for fans of The Martian, Arrival, and Interstellar. Sally Jansen was NASA's leading astronaut, until a mission to Mars ended in disaster. Haunted by her failure, she now lives in semiretirement, convinced her days in space are over. She's wrong. A large alien object has entered the solar system and is now poised above the Earth. It has made no attempt to communicate and has ignored all incoming transmissions. With no other living astronauts to turn to, NASA wants Jansen to lead an expedition to the object. For all the dangers of the mission, it's the shot at redemption she always longed for. But as the object slowly begins to reveal its terrifying secrets, what began as a journey to make First Contact becomes a desperate struggle for survival...and one thing becomes horribly clear: the future of humanity lies in Jansen's hands