Business class or economy ? Can find plenty of award seat from sin to HK in both business n economy on week of 11/3 to 15/3

sin to London is difficult though. Need to book in advance.
Sin to Taipei economy should have some availability. Business will be tough.

did Find easy availability for BKK to Phuket (star alliance award) for 11/3 to 15/3 for both business n economy. Plenty of seats available the whole week.