Which two-wheeler is it supposed to be…

Hello, I am 32 years old ALT and have finally made my A appearance. Now I am looking for a machine that can meet my requirements. I will drive about 200-300km per week (one-way route) with 2/3 share of BAB 1/3 Bundesstraße/Landstraße and what on weekends I don’t know yet Since I think, with the KM and a driving time of min. 2 maybe also 3 hours, that you probably get more back problems with super athletes and I sometimes auc h has to transport a few things, after my NON EXPERIENCE the following models come out as favorites: -Kawasaki ER6F ( <--gives something with 800ccm?) -Yamaha FZ8 or 6 each as a Fazer What would still be an interesting motorcycle with which I could deal with? I am 1.86 m. As said preferably the woolly milk sow. 130 should not blow me off the bock - as a beginner a 800 times quite easy enough to still after 2-3 years much fun on the machin I want to invest a maximum of 7-8.000 €. If you have had good experience with Naked Bikes with signage, there is also something for the best. Are there actually motorcycles in the area where the Sozius can also be used? With the above mentioned motorcycles say the test this is not really the case! Thank you for the help. Carsten