Here's a quick list to get you started, some bikes you might want to consider for china - europe trip:

Reliable all rounders:
Yamaha YBR250 - THE proven all rounder
Yamaha YBR125 - a lot cheaper
Honda CBF150RR
Suzuki GW250 - just came out, not proven yet but high hopes for it

A little lower on the reliability scale
Jialing JH600 - the only big cc chinese ADV bike
CFmoto 650NK - street
CFmoto 650TR - touring
Qingqi 250 Liger - you won't find one
Galaxy XTR250 - fun dirt bike

Bottom of the reliability ladder
Asiawing LD450 - such a shame...