>>4276626get an olympus/om systems OM-5 or used E-M5 Mark III (the OM-5 is essentially a firmware upgrade to the E-M5 III)
those cams will make you happy:
- compact
- light weight
- compact lenses
- superb image quality (better than APS-C because of the integral 2x crop factor vs fractional APS-C 1.5x crop)
- inexpensive
- flagship features in a compact and inexpensive body
- weather sealed
the OM-5/E-M5 is the best non full frame camera out there. and because you travel a lot it's the best camera for you because you save a lot of weight and size compared to full frame
https://my.omsystem.com/blog/b/photography-journal_en/posts/traveling-with-the-om-5 