Worldcheck is one of the most popular commercial screening tools provided by LSEG. The tool covers a wide range of AML and regulatory news about companies and physical persons. Screening includes politically exposed persons, state-owned entities, several sanctions lists, adverse media news, regulatory proceedings and fines and law enforcement news.
Its biggest advantage is its really vast database of informations with source links for further research. It is also a tool generally accepted by regulators, therefore using it as your main source for screening should not cause any regulatory problems. Worldcheck also allows screening of securities in order to identify sanctioned issuers.
Source: https://www.lseg.com/en/risk-intelligence/screening-solutions/world-check-kyc-screening