The best replacement for sati is suttee.

The best alternatives to sati are rated as following:
★★★★★  suttee
★★  parvati

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Speaking about sati, one probably shouldn't forget about mahadev.

Other search terms related to sati and their ratings are:
★★★★★ mahadev
★★★ shani mahadasha
★ ketu mahadasha
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sati
suttee
parvati