To review the journals that are indexed in Scopus you can access the Scimago website [https://www.scimagojr.com/] where you will find all the journals that are part of this database and you can search by the area and discipline of your interest. In the case of Thomson Reuters, I must mention that since 2016, this company sold its Web of Science portfolio to Clarivate Analytics. Here you can consult some data of the indexes and journals in the Master Journal List [http://mjl.clarivate.com/]. Finally, note that Clarivate Analytics is a bit more closed than Scopus in the information available.