Taipei is the capital and the largest city of Taiwan, it is a medium to large sized city. Its ratings for business and tourism exceed 300 and 200, respectively.
The airport currently in game is Taiwan Taoyuan International Airport (TPE).
Due to its good ratings, there is often competition in the city. It will not be a good idea to set a hub here if larger airlines have already utilised it, as your income and occupancy rate may be unstable. Medium to long haul monopoly routes to Europe and America are recommended .(eg. Dusseldorf, Portland etc) Large jets such as Boeing 747, 777 can be used to connect big cities such as Moscow and Munich. Smaller jets such as the A350 and B787 are recommended for the "long and skinny" monopoly routes to cities such as the already mentioned Dusseldorf.