A number of databases (e.g. Pubmed, Web of Science, Scopus) offer a function called Related articles, which is a convenient way to find "more like this" articles. How the list of related articles is made depends on the database.
In Web of Science the list of related records consists of records that cite at least one document cited by the selected or parent record (article). Related Records are ranked according to the number of references they share with the parent record. The assumption behind Related Records searching is that articles that cite the same works have a subject relationship, regardless of whether their titles, abstracts, or keywords contain the same terms. The more cited references two articles share, the closer this subject relationship is.
In Scopus you can make a choice to find documents that share the same references, keywords, or authors as the current record.
PubMed creates a list of related articles by comparing words from the title, abstract, and MeSH terms using a word-weighted algorithm. The related articles will be displayed in ranked order from most to least relevant, with the selected article displayed first.
Another option to find related articles is offered by Web of Science and Scopus. In these databases it is possible to search for references that cite a selected article, which implies that you can search for articles that are more recent than the selected article. In Scopus the link to these references is called Cited by, in Web of Science Times cited.