What kind of everyday life – 125 or yet ne’ “big” ?

Hello. In the summer I make the A-guide certificate (theory already passed :P) and then want to get myself a daily moped. So at least 125cc. I prefer a 2Tacter, because I can do everything myself. I’m not about to be very fast. so a choked 125er (80km/h) would be enough for me. just no 50^^. Can someone tell me something about consumption and insurance/tax on the following models? -125er Getrosselt (80km/h) -125er Getrosselt -250er, 300er, 450er etc. lg