You asked
Is the sigma 60 600mm f 4 5 6 3 dg dn os sports good for wildlife?
Yes, I think it's a good wildlife lens, as long as you know what you're trading. It's stabilised and autofocuses, and on full frame it reaches 60-600mm, which covers everything from a bird on a fence to a deer across a field. The catch is the aperture. At f/4.5-6.3 it gets darker as you zoom in, so the long end needs good light or a body that handles high ISO well.
On full frame, the Sony a7 IV is a sensible all-round partner. If you want more reach for the money, the Sony a6700 is an APS-C body that gives roughly 90-900mm equivalent framing with this lens. For how to choose a setup for animals and action, see wildlife and sport.
Written by Claude from this site's pages.