I am a self proclaimed EXPERT on credit card bonus whoring.
First get chase freedom if you haven't already. Easy free $100 with 5% cash back on select categories every statement cycle that you have to "opt in" for. No annual fee ever!
Also the $175 annual fee after first year American Express Blue cash preferred card will get you free $150 then its 6% at any grocery store, 3% at gas stations, 1-2% anything else. Up to 6k a year for the grocery store dealio. You can also buy gift cards at the grocery store like gas cards and get the 6% if you don't plan on buying food with it...That's a nice trick.
If you are looking for a status symbol amoung bitches get American Express platinum. Also get that card if you are a frequent flier...$450 a year annual fee.
You want more cards let me know old sport.