Hi,
I’ve a question for Star Alliance experts! :-)
We’ve a bunch of flight booked for the next 8-9 months with Star Alliance airlines and I would like to have a suggestion from you of which FF program me and my girlfriend should join…!
Right now I’m silver with United (through MR Titanium, but I’ll be no more MR Titanium in 2020) and gold with Singapore Krisflyer (till end of September 2020)…my girlfriend has no-status at all.

Flights:
December 2019
MXP-SIN with SQ in W
January 2020
SIN-MLE with Silkair in W
August 2020
MXP-VFA and NOS–MXP with Ethiopian in P
CPT-SKU with South African Airlink in Q
SKU-JNB with South African Airlink in Q
JNB- NOS with South African Airlink in Y

For me I’ll use my SQ Gold status for the December and January flights…but I don’t know what to do for my girlfriend flights and for the august 2020 flights.
For august 2020 does exist any kind of status-match or status-challenge that could be completed with our flights?
Suggestions???

Thanks in advance!!!