Changing compression programs was mentioned on the list last month. Doing Google searches for one thing can bring up something totally different...
https://github.com/powturbo/TurboBench This compares over 50 different compression programs with "pretty" graphs and tables as output. I think the test results on the web page uses part of an enwiki dump file. See http://mattmahoney.net/dc/text.html for information on the file.
Note: The developer might be same person who did LZTurbo. A closed source fork of GPL Tornado compression program. If wondering, Tornado leaves BZ2 in the dust in terms of speed with same compression size, It is available for Linux and Windows, but is not in any Linux repository I could find.
There is also Squash Compression Benchmark https://quixdb.github.io/squash-benchmark/
Bryan