I dont use a harness, but I do use the think Tank belt and a couple of lens changer bags. They work well for me.

For my strap I use a Joby Womens camera strap. I have not had a problem with having the camera and lens attach to the tripod attach point

I have a Nikon 16-35 F4 and I really like it, not as expensive as 14-24mm and it takes filters.