Notwithstanding the advice not to get a credit card for this trip, the Barclay aviator card will be around just a few more weeks perhaps, and it’s a great way to get miles. You get 70k miles after your first purchase and payment of the annual fee ($99).
if you are t familiar with it, check the View From the Wing blog post of Aug 18 (you can google “ Barclay aviator view wing” and it should come up.
Also keep an eye out for business class paid upgrades, as given current loads, they may be a more attractive value.