Non-QFN Cable Tuner ICs suitable for SDR

Most high-end cable tuner chips are in QFN packs. I am in search of a
manually solderable tuner IC which can provide good IMRR over 50-400 MHZ
range for my SDR project. I got hold of TUA6020 from Infineon Tech and
TDA65xx Philips Tuners in TSSOP packs. However, they seem to have poor
IMRR.
I dont want to tune the RF filter manually, instead prefer autotune
through
software signals.

Kindly help me in grading these and other chips, if any, on the IMRR
aspect.

Regards,
Prasanna