I've heard On the Beach by Nevil Shute is an interesting read. It's definitely on my to read list for sometime in the future. If you're already basically on death's door and gonna be gone soon, there won't be much time to get depressed over a depressing book about people in Australia awaiting radiation from nuclear world war slowly making it's way over to the last habitable place on the planet.
Edit:
As for books I have read, Fourteen Days, apparently by a collaboration of many authors, including Margaret Atwood. The caviat is I got most way through but didn't finish it in time before having to turn it back into the library. Follows a woman whose dad worked as basically a maintenance type person for those apartment buildings in New York. She ends up becoming one herself out of need for money while her dad stays in a care facility. COVID hits as she's starting, so she's in lockdown along with the other tenants. Throughout, they all start gathering on a rooftop every night ( even though they're not supposed to ) as the main character records what happens to basically eventually put it into a journal from the person who had her job before her.
That is all I will say on it.