Citi AAdvantage Platinum Select MasterCard again has a 50,000 AA miles sign up bonus after you spend $3,000 in purchases within the first 3 months. The normal offer is just 30,000 but this increased offer comes around often and was available until a few weeks ago. There’s also been higher offers on this card, but if one comes around after you apply, you can always ask to be matched. If you don’t need AA miles right away is better to wait.
The annual fee for this card is $95. However, this fee is waived for the first 12 months of account opening. The card also comes with no foreign transaction fees on purchases
Keep in mind that American Airlines AAdvantage bonus miles offer is not available if you have had a Citi / AAdvantage Platinum Select MasterCard opened or closed in the past 24 months.
I saw the offer at the bottom of the page while booking a flight at AA.com but looks like you can use this direct link to apply.
Citi AAdvantage Platinum Select MasterCard