The best replacement for stem wall is monolithic slab.

The best alternatives to stem wall are rated as following:
★★★★★  monolithic slab
★★★  slab on grade
★★  slab
★  monolithic

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Speaking about stem wall, one probably shouldn't forget about slab.

Other search terms related to stem wall and their ratings are:
★★★★★ slab
★★ slab foundation
★ floating slab
You have in mind a companion for stem wall and it is not yet here? Propose!



Google Trends

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stem wall
monolithic slab
slab on grade