You should probably have a look at the software you intend to run and see what kind of external NPU they support. I’m aware of Frigate for example which leverages hardware acceleration to classify camera surveillance footage. Guess their community knows which stick to get. Or you’d have a look at the frameworks which package machine learning models for inference on some NPU and have a look at their table of supported hardware.
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You should probably have a look at the software you intend to run and see what kind of external NPU they support. I’m aware of Frigate for example which leverages hardware acceleration to classify camera surveillance footage. Guess their community knows which stick to get. Or you’d have a look at the frameworks which package machine learning models for inference on some NPU and have a look at their table of supported hardware.