Lens for videography

Hey, just bought A6700 body today and looking for a one for all lens for a start, mostly for videography both outdoors (mostly) and indoors. I keep reading about Sigma 18-50, Tamron 17-70, anything else to consider? How are these two in compare? Or any other better for video?

In addition to that what other gear you'd recommend, like gimbal, mic setup, etc. Mainly what wireless mic is good for pairing.

Thanks for all advice, cheers.