Automatically say words after I get them right

You may also be interested in the self-study quiz which can also be configured to play the audio for vocabulary words, both after providing a correct reading and before to actually quiz you on audible readings. The latter isn’t possible with Wanikani alone.

I highly recommend configuring a quiz for vocabulary in stages 1 and 2 using the Vocabulary audio → reading and Vocabulary audio → meaning settings. It may help significantly in your ability to hear and understand spoken Japanese if you practice newly-introduced words this way.

The human brain is freakishly good at recognizing patterns if you give it enough data (practice/repetitions). Limiting it to just early SRS stage data avoids most of the synonym/homonym problems.