You asked for fiction so it gave you some on a whole new level.
On a more serious note, other services like bing AI chat are more suited to this. It will behave more like an assistant for this kind of query and be able to search the web for lists of highly rated scifi titles, it can also give you titles similar to something else you enjoyed.
ChatGPT is the same tech behind that but it’s more closed off and unable to do those things properly. If it does spit out some good titles it’ll be both a coincidence and using outdated data from whenever it was last trained.
I tried thinking of them and started laughing. Tried a second time to be sure and it happened again. Am I doing it right?