Suggestions for xindy

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

Package xindy-persian: Support for the Persian language in xindy
Package lamstex-index: Index processor for LamsTeX
Package addindex: Add index entries to LaTeX document
Package forindex: Manipulate \index commands in a LaTeX file
Package idxtex: An index processor
Package makeindexk: Makeindex development sources
Package texindex: Simple indexing using standard Unix commands
Package upmendex: Multilingual index processor
Package zhmakeindex: Makeindex replacement for Chinese users
Package hsindex: An alternative index processor to imakeidx written with Haskell
Package makeindex: Process index output to produce typesettable code
Package authorindex: Index citations by author names
Package corridx-obsolete: Add index entries to LaTeX document
Package latex-indexer: Automate index generation for LaTeX documents
Package xindex: Unicode-compatible index generation
Package nfssfont: Typesetting font tables using LaTeX’s NFSS notation
Package makeidx: Standard LaTeX package for creating indexes
Package csindex: Czech/Slovak version of MakeIndex
Package glotex: A glossary processor
Package index: Extended index for LaTeX including multiple indexes
Package genindex: Alternative index series
Package gindex: Formatting indexes
Package intex: Support typesetting and indexing words and phrases
Package plain: The Plain TeX format
Package base: Definitive source of Plain TeX on CTAN
Package classes: The source of LaTeX’s standard classes
Package biber: A BibTeX replacement for users of BibLaTeX
Package splitindex: Unlimited number of indexes
Package robustindex: Create index with pagerefs
Package compact-symbols: Compact lists of symbols
Package indextools: Producing multiple indices