The first is with a proper gas tube mount or the like. Unfortunately the closest there is is... https://www.ncstar.com/optics-acc/mounts/sks-mounts/msksv2-mntskswvrgas-tubegen2 Would love to see Amega or the like come out with one.
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EDIT: I am amazed that after all the time, none of the respected scout mount manufactures have come out with one for the SKS yet.
I am pleased with the SKS scout mounts made by Scout Scopes Mounts.com out of cedar park, TX. The mounts are not cheap at $78.95 but they are well made and will hold zero. Primary Arms.com has them in stock.