Purchase advice : Reliable, economical and affordable motorcycle

Hello together, I am currently looking for a “new” motorcycle, as the open motorcycle lobe will probably come soon. So far I have a GSX 400 and with which I drove about 20 000 KM (also bigger travel like e.g. from berlin to Istanbul with sozius ) Therefore also here the requirements that the new bulge should meet: cheap it should be, up to about 2500 euro for two people travel suitable on longer distances more horsepower than the GSX 400 … 27ps are too little too Reliable and economical (my favorite the XS850 unfortunately consumes too much, I think) in the race are currently: yamaha XS 650-1100 … probably too heavy and too high sprit consumption ( ??) honda cb 550 Suzuki GS550E suzuki gs 750 So more classic 80s asia motorcycles. The pretty BMW motorcycles are unfortunately too expensive in general …. Does someone have similar or better addition, or can even exclude something ? I would be happy about suggestions and help of any kind !