Similar to geishas, the "sing-song" girls (also known as 'flower girls' were trained from childhood to entertain wealthy male clients through companionship, singing and dancing in special sing-song houses. While the practice of concubinage was officially made illegal, it has recently been popular amongst the wealthy in China as a result of the country's prosperity.
The more willing you are to travel at a moment's notice, the more opportunities you can access. Day jobs will limit travel, so will mortgages and car payments. Photojournalist Lynsey Addario recently wrote about being 7 months pregnant while on assignment in Gaza. I deeply admire her bravery and commitment to her work, but I imagine many photographers aren't willing to make such compromises. Consider your lifestyle, and how much time you're willing to spend away from home. As for myself, I'm a long-term digital nomad traveling with a suitcase and a backpack and an open mind. Being available and flexible has made a monumental difference to my career.
The most interesting sites for people photography in both Taipei and Hong Kong are in and near temples such as Man Mo and Longshan. The night markets are also a trove for photogenic characters such as the tattooed fellow who stood akimbo guarding his inventory of bric a brac items that lay down in Xichiang market...whether this inventory was honestly procured or otherwise is left to the imagination of viewers.
"Back when we started Wanderlust, we would invite photographers in with their portfolios. Nowadays, although we do commission some work, we increasingly use online stock libraries to find images for this website and for our magazines. On the one hand, they libraries have a wide range and make it very easy to search. On the other hand, we can find ourselves wading through pages of very average shots that don't offer anything different or fresh. And, so often we struggle to find what we need due to poor tagging by the photographers."
You can offer photography services to any business in the travel/tourism industry at your destination of choice. Opportunities are plentiful, whether you're selling your services or offering a trade. Going skiing in Colorado? Get in touch with local lodges about trading photography for a free stay. Vacationing in Vienna? Talk to the local tourism board about shooting a few photos for a fee. I recently made a deal like this in Cape Town shooting a month-long campaign with their tourism board, which resulted in a promotional blog post and lead to even more work. Remember that a strong portfolio goes a long way, and as it grows, so will your opportunities.
rove, stray, roam, vagabond, wander, swan, ramble, range, drift, tramp, cast, roll - move about aimlessly or without any destination, often in search of food or employment; "The gypsies roamed the woods"; "roving vagabonds"; "the wandering Jew"; "The cattle roam across the prairie"; "the laborers drift from one town to the next"; "They rolled from town to town"