Here are some resources that are available online for studying 1 and 2 Corinthians:
- http://www.ntgateway.com/paul-the-apostle/1-and-2-corinthians/
- https://www.biblicalstudies.org.uk/1corinthians.php and https://www.biblicalstudies.org.uk/2corinthians.php
- http://www.textweek.com/1_corinthians.htm and http://www.textweek.com/2_corinthians.htm
- https://bible.org/seriespage/7-1-corinthians-introduction-argument-and-outline and https://bible.org/seriespage/8-2-corinthians-introduction-argument-and-outline
- http://www.bibleodyssey.org/places/related-articles/corinthian-letters, http://www.bibleodyssey.org/places/main-articles/corinth, http://www.bibleodyssey.org/places/related-articles/church-at-corinth, http://www.bibleodyssey.org/places/related-articles/corinth-in-acts-pauls-financial-support, http://www.bibleodyssey.org/en/tools/ask-a-scholar/first-corinthians, http://www.bibleodyssey.org/passages/related-articles/1-corinthians-13-and-weddings, and http://www.bibleodyssey.org/tools/image-gallery/c/corinthian-letters
- https://www.ligonier.org/blog/top-5-commentaries-on-the-book-of-1-corinthians/ and https://www.ligonier.org/blog/top-5-commentaries-on-the-book-of-2-corinthians/
- http://www.bibledex.com/videos/1corinthians.html and http://www.bibledex.com/videos/2corinthians.html
- http://www.thepaulpage.com/
- Bibliography: 1 Corinthians and Bibliography: 2 Corinthians