I feel lost on what to read next

So I just finished reading Project Hail Mary and that being my first book I could finish in 10 years. I now feel lost on what to read next though I have some books I want to read but I am uncertain if i can read a book or series that long. The book/books are The Count of Monte Cristo and the Red rising series, if just feel kinda lost and can’t make up my mind of what to read next. Any suggestions?

I really loved the relationship between Rocky and Ryland so I’d say a book like that would be nice