Estimating which romance novel is truly the “greatest classic love story” of all time is out of the question because each reader has got a different opinion on his/her favorite novel. But for various reasons, some happily-ever-after epic romance novels have been considered the best classic love stories ever written.
Here is a list of 5 epic romance novels to read in your lifetime. https://www.technologyelevation.com/2021/02/5-epic-romance-novels-to-read-in-your.html