Suggestions for Multilang

The following packages have something in common with the package Multilang. The packages are ordered in decreasing similarity.

Package pxcjkcat: LaTeX interface for the CJK category codes of upTeX
Package babel-french: Babel contributed support for French
Package babel-friulan: Babel/Polyglossia support for Friulan(Furlan)
Package babel-romansh: Babel/Polyglossia support for the Romansh language
Package iflang: Expandable checks for the current language
Package translator: Easy translation of strings in LaTeX
Package datetime2: Formats for dates, times and time zones
Package translations: Internationalisation of LaTeX2ε packages
Package attachfile2: Attach files into PDF
Package attachfile: Attach arbitrary files to a PDF document
Package pdfmarginpar: Generate marginpar-equivalent PDF annotations
Package repltext: Control how text gets copied from a PDF file
Package hypgotoe: Links to embedded files
Package pst-pdf: Make PDF versions of graphics by processing between runs
Package babel-slovenian: Babel support for typesetting Slovenian
Package babel-finnish: Babel support for Finnish
Package babel-malay: Support for Malay within babel
Package babel-bosnian: Babel contrib support for Bosnian
Package babel-scottish: Babel support for Scottish Gaelic
Package babel-spanish: Babel support for Spanish
Package babel-croatian: Babel contributed support for Croatian
Package babel-norsk: Babel support for Norwegian
Package babel-portuges: Babel support for Portuges
Package babel-swedish: Babel support for typesetting Swedish
Package babel-dutch: Babel contributed support for Dutch
Package babel-greek: Babel support for the Greek language and script
Package babel-danish: Babel contributed support for Danish
Package babel-indonesian: Support for Indonesian within babel
Package babel-english: Babel support for English
Package babel-basque: Babel contributed support for Basque
Package babel-sorbian: Babel support for Upper and Lower Sorbian