All depends on dates, but-
If you want to maximize MQD, and fly PE, you might look at AF through CDG. Several years ago I did several. PE trips to Asia that way and even booked stopovers in Europe for just a few $s more.
Seeing BOS-SIN in AF PE for $2300 depending on dates.
Even better seeing JFK-SIN MU business for $2600!
Or lower MQD % on CI via TPE for $1300 but TPE-SIN isn’t PE.
All found on google flights.