You will really have to search but if lucky you can find a Bausch&Lomb 1.5x6. These are the Balvar six made in Japan and a real shame no longer made. Super clear glass and fit a Lever Marlin like a glove. I was fortunate to find two. One on a 336 A in 30-30 the other 336 SC in 35 Rem.

"......ain't many troubles that a man cain't fix
With seven hundred dollars and a thirty ought six."