So far I've gone with vanilla Redux redux-thunk, react-redux, and of course the Redux dev tools. I feel there's still room for improvement, though, and I'll likely evolve the stack further. redux-saga is looking promising and would avoid mocking at the test level. I'm not really a fan of mocking.
I found redux-act-async and redux-operations a while ago and they seem to alleviate some of my concerns. Shasta toolkit could grow into something interesting as well and I expect we'll see more Redux based distributions like that in the future.