"Hail Mary", the new Andy Weir book. A man wakes up alone in a space-ship, but he doesn't remember who he is or why he's there. The story is structured by alternating with the main character figuring out why he's there and what he's supposed to do, with the flashbacks that show you how he got to where he is as his memory gradually comes back. It's quite a science based story (just like The Martian), but there's several clever twists, not just as the main story progresses, but also as the main character remembers what his mission is.
I don't want to give away any spoilers, but despite the science based story, it's a more fantastic story than "The Martian", but has that same feel of the first person story (alternated with the flashbacks), as the main character figures his way through many science based problems and reveals more about himself. I enjoyed it as much as "The Martian", but there's a human connection with the main character in "The Martian" that isn't quite there with "Hail Mary", though a suitable substitute is provided. Very recommended.
"Bear Head" (Dogs Of War 2) - Adrian Tchaikovsky. A sequel to Dogs Of War sees Bees exiled/escaped to Mars along with altered humans to build and terraform the planet, pushback from politicians on the subject of uplifted animals moving toward enslaved sentient animals (with people not far behind) and a totally nasty Trump-type politician with bigger, and more awful plans. When a dodgy Mars worker tries to make some extra cash hiding data in his brain implants, he gets more than he bargained for when a cybernetic personality unfolds in his head and accidentally starts a revolution both on Mars and on Earth. A good sequel that expands on the future of the world we saw in "War Dogs", and yet manages to be different and new. The explanation of the "meta-game" makes a lot of sense in the current world.
"The Doors Of Eden" - Adrian Tchaikovsky. A serious standalone sci-fi novel where a couple of monster hunters run into something nasty while investigating on Salisbury Plain. One of them seems lost in an alternate reality version of Earth, and the other who escapes finds her life spiralling at the loss. Until five years later, they spot each other on a London street. This is a great story that incorporates mad industrialists, alternate realities, computer gods, government agents, and an adventure to save all of the multiverse. This is as good as "Children of Time", but with an author who's had more time to hone his skills, a more expansive and fantastic story, and yet one that resonates more closely as so much of it happens in London in the present day.
At the same time as I was reading this, I read several other SF books that fashionably had to have LGBTQ characters clunkily forced in there, and this is the book that carried it off well, treating a character's sexuality as simply one aspect of their personality, not the whole be all and end all like a flag-waving exercise to show how woke the author was. Highly recommended.