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A travel camera should first of all be light, compact, flexible in use and as robust as possible.
Above all, you should be able to take great pictures with her and capture the special moments of your trip.
The requirements are high, you will want to take portraits, landscape shots are included, street photography and low light shots to be able to photograph inside buildings and to be able to capture beautiful moods in the evening.
My advice:
Decide: interchangeable lens or camera with fixed lens.
Either get a compact camera like the Sony RX-100 or the Fuji X-100 if you're looking for a camera that you really want to have with you at all times, they fit in any handbag or jacket pocket. The Sony has a small zoom, the Fuji X-100 has a fixed focal length. Neither are classic portrait cameras, but you can still take excellent portraits with them.
With a system camera, you can use the right lenses for your trip, but you can also combine them with other lenses, for example with long telephoto zooms or macro lenses.
In addition to the compact cameras, I only recommend system cameras with an APS-C or FourThirds sensor. They are smaller than 35mm full frame sensors and allow for much lighter, more compact and also cheaper lenses. You will not notice any differences in the later picture. You can take pictures with little light as well as shots with beautiful bokehs with the small system cameras.