@duncanlock For examples of works ascending at the end of this year, you can follow the #PublicDomainDayCountdown hashtag. My blog, which uses that hashtag and is syndicated to the fediverse, features a different work every day that's ascending to the public domain in the US at the end of 2024.

(Unfortunately, I don't think Canada's getting anything new, due to a recent copyright extension pushed by the US. Some other countries will, but often different works than what the US is getting.)