try the CITI PLAT AMEX --- this is CITI's version of the AMEXcard. You get:

1) Thank You points and since you are already earning points, this will help. You can earn 3 pts per $ spent for the first year up to 150k per year. Once your year is over, cancel and repeat.

2) No annual fee

3) Priority Pass -- which allows into approx 450 lounges around the world.

I would suggest you stick to TYP since the program lets you buy tickets and then EARN miles on them unlike AWARD tickets which donot let you eanr miles.