The best replacement for sanctions is embargo.

The best alternatives to sanctions are rated as following:
★★★★★  embargo
★★★  negative sanctions
★★  embargoes

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Speaking about sanctions, one probably shouldn't forget about iran.

Other search terms related to sanctions and their ratings are:
★★★★★ iran
★★★ sudan
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Google Trends

Scale is based on the average worldwide traffic of sanctions in all years. Click on graph for more.
sanctions
embargo
negative sanctions