Best Switch Online Voice Chat Set Up

[Signalstar]

I have never played my Switch online. Recently I agreed to play Super Mario 3D World through online co-op with a friend of mine. Usually we play online through PSN and the voice chat is simple. I know the Swtich online system is not as intuitive but what do you think is the best way to set up voice chat. Is there a mic you recommend? Should we use a 3rd party chat app? Pretty much anything other than talking through a phone call I am open to.

Thanks.