Not Cambodia at the moment. That was the advice given at 2 DTV promotion events on Friday in Chiang Mai. It was also hinted it is better to apply at home rather than travel to apply if possible. If someone already in Thailand for a while going locally makes sense. Travelling just to apply not so much.
At the DTV promotion meetings I was at Friday they def mentioned recent lump sum deposits just to qualify for the financial requirement look suspicious to some Embassies. If someone does this I would say they should explain it in the cover letter.
At 2 DTV promotions in Thailand on Friday the advice was to avoid applications in Cambodia while the current tensions between the 2 countries were ongoing.