I take Taekwondo and Hapkido. While both are Korean arts, the two seem to be polar opposites to me. That works both for and against them. On the one hand, it gives you plenty of tools to use at kicking and clinching/trapping range - which is where not many arts are comfortable - but it also because it gives a grappling and a striking style. Wing Chun, even though it is a punching art, appears to be more in trapping range, just like Hapkido. However, where I would describe Hapkido as a soft, circular grappling art, Wing Chun seems more of a hard, linear striking art. Both play on reading the opponent's intention and power direction through their arms, and both rely on speed and precision more than power (like, for example, kickboxing and wrestling would). My thought process is that on the one hand, Wing Chun could serve as a supplement to hapkido and teach new ways to read your opponent inside trapping range, and a wider range of options to use from that range. The other hand is that you already have skill in trapping range, and it might be better to focus on punching range (with boxing or Muay Thai) or grappling range (with judo, wrestling, or jiu-jitsu). Of course, I know it all comes down to the master you have more than the art, but I'm curious if these two arts would work together really well or if the philosophies of the styles would clash.