I like the series about a Thai cop, starting with Bangkok 8. It's fast, light, but also contemplative.
Here's Wikipedia:
A series of crime novels mainly set in Bangkok, they consist of six books: Bangkok 8, Bangkok Tattoo, Bangkok Haunts, The Godfather of Kathmandu, Vulture Peak, and The Bangkok Asset. They centre on the philosophical Thai Buddhist detective, Sonchai Jitpleecheep, and his meditative internal dialogues. Sonchai is a "leuk krung" or half-caste. He is the son of a former "rented-wife" (a type of prostitute) and a "farang." His father was a U.S. military officer whom he never knew. Sonchai has spent much of his childhood in Europe and the U.S.. A born "outsider", he is also seemingly unbribeable, which increases his alienation from his colleagues.