You won't find cheek pieces on many guns other than German. That was their specialty. As a group, if you're looking for a relatively inexpensive double that's cast neutral, the Japanese imports (SKB and Browning BSS) are probably your most likely candidates. Also guns that were imported some time ago. Most American classic doubles were cast neutral unless ordered otherwise, so until relatively recently, European imports were that way as well. Pretty sure the older Beretta sxs (409 series, including the old Silver Hawk; also 424 series and GR series) were cast neutral, and I think Bernardellis were as well. You're more likely to find cast on newer Spanish guns than you are on older imports, like the AyA Matador.