I’m a Greg Egan fan. Schild’s Ladder and Teranesia are top of mind at the moment.
Vacuum Diagrams by Stephen Baxter. It’s linked short stories set in a larger collection I haven’t read, but which sounds promising.
I’ll post more if I think of more, but it’s been way too long since I read a sci fi book… I have been missing it!
All these Nostr folks loving TBP makes me think about rereading the first and reading the sequels as well…