The English translation of Maqamat al-Hariri was done by A. W. Kinglake (1809-1894) and is considered a classic translation. There are also other translations available, but Kinglake's is one of the most well-known.
One chapter might sound like Mark Twain, another like Shakespeare, and another like Cockney slang. maqamat al-hariri english translation pdf
Two main English translations exist, both in the public domain (hence PDFs are legally findable via university repositories or archives like Archive.org): The English translation of Maqamat al-Hariri was done by A