if u are looking for another with similar focal length, then probably not.
Else u can get CZ16-80, SAL16-105 and Minolta 28-135
these 3 lenses are affordable and sharper than the SAL18-250.
Just FYI, I have the 18-250 and CZ 16-80 currently.
Owned and sold away a 16-105, and used a 28-135 before, so these 4 lens are from my own experiences rather than reading some reports off the internet.
I now keeping the 18-250 for general walkabouts, and CZ16-80 for occasionas when I need a sharper lens. I feel its better this way, one lens for general purpose use, and one sharp lens for specific usage.