You asked
Sony e 55 210mm f 4 5 6 3 oss vs tamron 18 200mm f 3 5 6 3?
I don't have a Tamron 18-200mm page on the site, so I can't compare it directly. I can tell you about the Sony 55-210mm, though. It's an APS-C zoom that frames like 82-315mm on full frame. It's stabilised and has autofocus. Its aperture is f/4.5-6.3, so it gets darker as you zoom in, and it works best in good light. It fits Sony E APS-C bodies natively and full-frame Sony E bodies in APS-C crop mode.
If you want one lens that covers the wide end too, the closest page I have is the Sony E 18-200mm f/3.5-6.3 OSS. For a one-camera setup more generally, see my picks by type on the travel page.
Written by Claude from this site's pages.