@ OP -- if you shoot in good light condition, I would highly recommend RX10 IV(24-600mm f4). Save your back & bank from lugging those 300mm, 400mm or 600mm heavy lenses. As an A9 owner, I'm amazed with AF tracking on this RX10 IV.
These were shot w/ RX10 IV:
_DSC0396 by Dylan Nguyen, on Flickr
_DSC0333 by Dylan Nguyen, on Flickr
_DSC0322 by Dylan Nguyen, on Flickr