I know about:
http://qrng.ethz.ch/http_api/
https://qrng.anu.edu.au/API/ and https://quantumnumbers.anu.edu.au/
https://www.quantumblockchains.io/qrng/
https://qrandom.io
https://camacholab.byu.edu/qrng
http://random.irb.hr
Here's one more: https://www.quantumcomputinginc.com/qrng/
1,000 to start trading!1,0001,000