The best way to get profiles is to generate them yourself, although this does require some initial outlay.
Many manufacturers do try to provide color profiles for devices, although sometimes they are wrapped up in driver bundles which you may need to download, extract and then search for the color profiles.
Some manufacturers do not provide accurate profiles for the hardware and the profiles are best avoided. A good clue is to download the profile, and if the creation date is more than a year before the date you bought the device then it’s likely dummy data generated that is useless.
See Why do I need to do calibration myself? for information on why vendor-supplied profiles are often worse than useless.
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