The only one that works is Regeneron.
Regeneron Says COVID-19 Drug Could Be Less Effective Against Omicron | Newsmax.com
Regeneron Pharmaceuticals Inc said on Tuesday prior analyzes suggested its COVID-19 antibody cocktail, and similar drugs, could have reduced activity against the omicron coronavirus variant...
https://www.newsmax.com/health/health-news/regeneron-covid-omicron-effectiveness/2021/11/30/id/1046662/
That and Ivermectin and Hydroxycholorquinine, which are much cheaper.