– if you have a a residence in Puerto Rico, Banco Popular also has a 50,000 AAdvantage miles offer for you
– if you have had all American Express Platinum cards this the Morgan Stanley American Express Platinum 50,000 is a great alternative (and will likely not count against the lifetime bonus)
However you should have an account with Morgan Stanley.
– Marriott let’s you refer friends which will earn 2,000 Marriott Rewards for you and for your friends for up to 10,000 per friends (and up to 5 friends)
– if those are too many 50,000 offers for you read the Barrons article (it’s the rather well known investors magazine) thinks American Express is in trouble as most major banks can pay out more rewards per dollar spend than what Amex can do