Barclaycard Arrival Plus World Elite Mastercard is currently offering 40,000 miles for the first $3,000 purchases within the first 90 days. "Miles" are not restricted to any particular airline, & this card earns 2x for every $ on ALL purchases. It has an EMV chip & does not charge any foreign transaction fees -- you do not want to use Citi cards outside of the US. The annual fee is $89 but is waived the first year. We got this card last year just before a trip to the UK & will be keeping it for the double earn during foreign travel.
DH & I have each had a Citi AAdvantage card since 1987, a Mastercard & a Visa, & recently converted both of them to Citi Double Cash cards because we did not want to lose the history & large credit limits they had built up to, but each was charging us $125 annual fee & only earned 1x for purchases other than AA. Double Cash does not charge an annual fee & earns 1% on purchases plus an additional 1% when paid, & we pay all balances in full every month. We happen to each be Million Milers & permanent Platinum so we don't need an AAdvantage card for priority boarding & free checked bags. However, DS does when he's not traveling with us. Each of us has to make sure to post AA activity (flights or purchases) within 18 months or that AA account will lose ALL accrued miles.
DS, DH, & I each just enrolled in the Barclay US Airways card that gives 50,000 miles for the first purchase of any amount plus $89 annual fee; this is a great deal & both the card & the miles will convert to AA next quarter. AA purchases earn 2x Dividend Miles & will convert. After this month, Barclay won't be able to offer an AA card except to existing US Airway cardholders, so the window is closing. Unlike Citi, Barclay won't charge a foreign transaction fee on this or its eventual AA card, so it will be a good backup card overseas. Next year, DS will probably cancel it in favor of a Citi AAdvantage card bonus offer, but we'll have to wait 18 months since we converted our AA cards.