We got this 48 egg incubator from Amazon ( from China). It has an automatic egg turner and circulation fan. It seems to work very good.
On the first try we got 20 out of 32 chicken eggs to hatch. I believe it will be even better on the second try. It also worked well with hatching duck eggs.
Amazon links:
https://amzn.to/2T7yWk2
https://amzn.to/32l68bP
We have fertile duck eggs for hatching available on Amazon:
https://amzn.to/3sBWsFU