I started reading sci-fi(mostly hard-sf) after I read the commonwealth saga, 'Pandora's star' and 'Judas unchained'. It was just really entertaining and unlike anything I've read. Also really recommend 'Snow crash'. Also adding a couple fantasy recommendations: Lies of Locke lamora, and any basically any novel by Brandon Sanderson (Mistborn: the final empire, Warbreaker, The way of kings etc.)