I usually fly SK/LH in Europe, in economy. Top airports are ARN, OSL, BER. I would have something like 30-40 flights split quite eavenly between the airlines. Also a couple of A3 flights, mostly for status renewal.
I have had *A status through A3 for years, requalifying has always been easy, at least with the 4 A3 flights thrown in.

But now that SK has left *A, I don't really know what to do.
I have been matched to LH SEN, which is nice.
But I don't know if I should try to keep *A status with A3, switch to M&M or move to a different program.

Long haul, I only fly business class, but mostly Oneworld and/or on points.
I'm not a fan of LH's long haul product, and I don't want to spend thousands or euros/dollars, just so I can have lounge access for those 15 or so LH short haul economy flights per year.
So I don't really want to fly five such trips, for example: https://www.premium-flights.com/mile...ifying-points/
Then again, I have really gotten used to the status, so I don't want to lose it either.
I fly to Europe-DXB (or vice versa) a couple times per year, so maybe I could buy a cheap F ticket once per year if that helps with the status.

I have access to US credit cards as well, but it seems like you can't easily spend your way to *A status, neither with AC nor UA.

Any suggestions?