What is wrong with the 148 gr. FWC, with a very light load, such as 2.5 to 2.7gr. of Bullseye? My daughters shot this load when they were 6 to 8 years old, and didn't have any problems. Today, one shoots a SP101 with 3" bbl. .357, and does so very accurately.
Use a shooting muff and ear plugs; it is frequently the noise rather than the recoil that bothers beginners.
You can get lighter bullets, such as the 125 gr. LRN, designed for the 9 x 19mm, but you must be very careful with the greatly increased case volume, and use a fairly stout load of powder, thus, negating any benefit of the lighter bullet.
One other option is to use the plastic bullets offered by various manufacturers which are propelled by the primer only. These have virtually no recoil at all.
Hope this helps, Walt Welch