12145V, 20000SR is a strong TP with multiple channels on it (NHK, CGTN, etc) plus some radio. Start with this if you're having a hard time getting some of the others. The NBC's are a bit weaker and might need some tweaking. Right now DW is a little tough for me, mostly because the wind blew my dish and I need to re-tune.
Then don't worry about using blind scan. Simply manually scan each transponder you can receive. The frequencies, polarizations and symbol rates are clearly shown in lyngsat.com.