Hello there 
Are there way to placing animated foots onto ground?
There is project named IKinema, but this plugin available only for 19.99 USD per month. ?v=FWmdH9sXd3I I don’t want use it.
Can I do same with animation using physics blending? Are there tutorials about it?
Take a look at this site: https://docs.unrealengine/latest/INT/Engine/Animation/IKSetups/index.html + the content examples. There you can find a ik setup