I am SPG Plat 100. I understand Starwood Programs. I have a Companion Pass with Southwest Airlines. My home airport is 60% Southwest flights. I have a cashback card getting 2.65% on everything, but l feel like I should be doing better with signup bonuses. I do go overseas every 2 years or so, and think I might need a Delta, American, or British Air card next. I am very happy with SPG and what I get there. Any help out there on what Card/ Program to do next? Would probably be able to spend 30-50K yearly.