A short, finished list rather than an endless feed: 48 of the best valentine's day quotes ever written, picked out of the full valentine's day archive on QuoteForever. You will find Amy Morin, Prince Royce, Judah Friedlander and Pulkit Samrat among them.
Read the list top to bottom, or use it as a starting point - every author name links to everything else they said, and every quote has its own page you can share or turn into an image.