There are many collections of sermons online which can be very helpful to preachers, not least by suggesting relevant introductions and helpful illustrations for a particular passage or topic.
Containing thousands of sermons from hundreds of contributors with very helpful indexes, but sometimes very “american” in style and theology:
British, Baptist, and from a lifetime of experience of preaching, CBM Chair Rev Dr Paul Beasley-Murray has over 250 sermons on his blog, helpfully indexed by Bible book.
www.paulbeasleymurray.com/sermons
The blog from CBM Treasurer Rev Peter Thomas has almost 500 sermons from more than six years indexed by Bible book or by theme, and searchable by Scripture or Keyword.
Members of CBM are invited to add their blogs to this list. Email admin@collegeofbaptistministers.com