Getting AA Executive World Elite Master Card > buying an admirals club membership. Not only is it ~$300-$400 less, but you can add 3 authorized users free of charge, who also get to bring in 2 guests.

As an AA EXP, I can gift platinum (equivalent to oneworld sapphire)...if there's any GGLs out there who want to swap for BA silver, PM me. I can gift to anyone, and it lasts now-March 31, 2026...BA silver gives me flagship access domestically, so it's of interest.