'New' is mostly irrelevant, in terms of digital cameras. Granted, you won't have warranty support. Nor, the latest brag rights on UHH. And, the older the model, the less likely of a repair option. But, modern cameras, say anything from 2015 onward, are luxury goods. Few 'need' can interchangeable lens camera. Lower-end models compete with $1000 phones, so who needs a $1000 camera-phone and another $800 camera-camera? As luxury goods, this equipment is built for the long-haul, where 'used' is typically indistinguishable from new in the equipment's long-term useful-life-expectancy.

Since you refused to provide the requested details to give focused answers, consider the Canon Powershot models, that are all 'new', 'digital' and 'sub $800'. I shoot with an older Canon G9X-II, a 20MP model, where Canon and Sony have standardized on this pixel resolution and cropped sensor for their multiple models in this pocket-sized model. Sony's version are 'Cybershot'.

For interchangeable lens cameras, you just have to consider your options. A widely popular model like the Canon EOS 5DIII now has a glut of used models in the resale market. They're appearing lightly used in the $600 range, for a 22MP full-frame camera with many of the features of Canon's top 1DX-II model from the same 2012 time period. Any 20MP to 24MP model is much the same as another, whether new or 10+ years old. Worrying about 'new' is your own self-limiting decision, and worrying about sub $1000 is unrealistic for 2023 -- probably forever more.

I didn't mean to "meanly" send you to a dog like Abe's. It's just that prices are set the same for all new camera equipment from authorized US sellers. Anyone selling for less is selling something questionable, typically grey market. "New" grey market is equipment exactly the same as 'authorized US' equipment, built in the same factory, tested to the same quality standards, but selling at a lower price and without a US warranty. So, if there's a problem that should have been a warranty issue / repair, you're going to have to pay instead, assuming the brand manufacturer will even look at it. Abe's is a notorious grey market seller, so if you were looking at price alone and not support, you'll see Abe's always seems to be the cheapest.