If you'd care for a fun project:
Some time ago I bought the UNI-T UT210E clamp meter, which has a 1mA resolution and costs around EUR30.
There are some YT vid's to modify it with an analog output.
The expected bandwidth is only a few kHz, but still, not bad for EUR30 and it's also got DMM functions such as resistance, capacitance, voltage, etc.
The thing is of course optimised for low power. I have no Idea what sort of bandwidth you could get if you replace all the electronics except the clamp and HALL sensor itself.