So, I've been earning a ton of United miles in advance of a Europe trip I'm planing for next Summer. Given that United miles are easy to acquire (portals, UR conversions, CC apps, manufactured spend, etc.) and had generous partner reward booking rates before the devaluing. If I wanted to maintain access to *A awards, and assuming the US/AA tie up happens and US goes to OW, where is the best program to earn *A miles in? I have a Lufthansa CC, and there are LAN cards available. MR transfers to both, as do SPG points (I think SPG may be the answer). Without jumping ship to OW (next option in lieu of *A miles), where would you start earning *A miles to continue access to *A partners?