There are several ways to find new hubs:
(i) Something catches your eye from the homepage itself
(ii) Hub hopping
(iii) Search from the topics if you want to read hubs on a particular topic
(iv) look up in the latest, best or hot hubs
(v) following your notifications and find what the hubbers you follow have published recently
Looking for good hubs to read is fun, so I try all of these depending on the available time and mood.
Sometimes browsing through a wide variety of hubs generates ideas for writing new hubs.