Here are 132 words that fit the criteria:

sablefish, sachcloth, sackcloth, sagebrush, sailcloth, sallowish, saltbrush, saltcatch, saltmouth, sandarach, sasquatch, sassenach, satinbush, saucedish, scaldfish, scalefish, scholarch, schoolish, schottish, sciagraph, sciograph,scleranth, scourfish, scroinoch, scroinogh, searcloth, semisixth, semitruth, sephiroth, serigraph, sermonish, severalth, shabbyish, shaharith, shahzadah, shamianah, sheatfish, shechitah, sheetwash, shellfish, sheminith, shikargah, shillalah, shillelah, shipsmith, shoebrush, shoesmith, shoffroth, shopbroth, shorebush, shorefish, shrewdish, shrillish, shrimpish, shrubbish, shetlach, sialoith, sibboleth, sideflash, silentish, silverish, sixtennth, skeighish, skiagraph, skiograph, skullfish, skunkbush, slightisch, slipcoach, slowcoach, smittlish, smokebush, smoothish, snailfish, snakefish, snipefish, snowbroth, snowbrush, sociopath, somberish, sombreish, songsmith, sonnetish, sonograph, sourdough, spadefish, spearfish, spicebush, spiderish, spikefish, spleenish, sprackish, squabbish, squallish, squattish, squawbush, squawfish, squeamish, squibbish, squirarch, squirtish, staggarth, stalworth, startlish, statelich, statolith, steadyish, stingfish, stinkbush, stockfish, stonefish, stonewash, stopwatch, strictish, strongish, stupidish, subbranch, subhealth, sublimish, subplinth, substanch, subtrench, succotash, sugarbush, summerish, sunscorch, superhigh, surfperch, sweetfish, swellfish, swordfish, symbranch