I your expert opinion please.

Ok Dragon it is

I have only Dragon Panther G's and they are excellent. But Ryefield Model and Takom have panther G's and I have heard they are pretty good too. Both have interior kits but if you don't want that you can get a das werk panther g which I believe are the Takom kits without interiors.

There are lots of other pages that a Google search will also bring up the information you're looking for. Scalemates is always a decent starting point.

https://www.scalemates.com/kits/rye-field-model-rm-5016-panther-ausfg-early-late-w-full-interior-sdkfz171--1118050

https://www.scalemates.com/kits/takom-2134-panther-ausfg--1194117

https://www.scalemates.com/kits/dragon-6384-panther-g--108540
https://www.scalemates.com/kits/dragon-6268-panther-g--989256

https://www.scalemates.com/kits/tamiya-35176-panther-ausf-g--132722

I built Dragon 6384,a fantastic kit

Agreed. I usually go to Scalemates for reviews. They are usually in-box reviews with sprue shots so you can see what's in the box. But equally, or more, important is getting modeler's opinions and experiences of actually having built the kit.

There are some well informed opinions by people who know the subject as well as building them on Missing Links. Look for posts by Ron Owen Hayes, for example.