Here are three excellent sites for free Bible Study material.
The first is
https://www.ebcwa.org.au This completely free source is excellent for Pastors, Lay Preachers preachers and students considering becoming ministers. Very thorough, covers every book of the Bible in detail. New Christians may find it a bit heavy at first.
The second is
https://freebiblesubjectstudies.yolasite.com/ This completely free source is ideal for Personal Study, Home or Church Bible Study Groups. It is a study by subjects and covers most of the important subjects and doctrines of the Bible. It is of great value to new Christians. - No personal details and no registration required. Free to download and use by individual subjects or the lot. Free to copy and use individually or in groups.
The third is
https://heraldofhope.org.au/index.php/publications This site specialises in Biblical Prophecy but also covers a number of other subjects. It offers many sound well laid out Studies including a lot of great Maps and illustrations. Go to this site and you will see a large list of their free books etc. for download.