Suggestions for xgreek
The following packages have something in common with the package xgreek. The packages are ordered in decreasing similarity.
- xltxtra: “Extras” for LaTeX users of XeTeX
 - xetex-greek: Hyphenation for different variants of Greek, under XeTeX
 - polyglossia: An alternative to babel for XeLaTeX and LuaLaTeX
 - fontspec: Advanced font selection in XeLaTeX and LuaLaTeX
 - inputnormalization: Wrapper for XeTeX's and LuaTeX's input normalization
 - fontsetup-nonfree: A front-end to fontspec, for selected non-free fonts
 - fontsetup: A front-end to fontspec, for selected fonts with math support
 - unicode-math: Unicode mathematics support for XeTeX and LuaTeX
 - grchyph: Hyphenation for classical Greek, under XeTeX
 - interchar: Managing character class schemes in XeTeX
 - unisc: Unicode small caps with Lua/XeLaTeX
 - swungdash: Typeset a swung dash in LaTeX
 - emotion: Make emojis more easy to use in XeLaTeX and LuaLaTeX
 - hanzibox: Boxed Chinese characters with Pinyin above and translation below
 - ucharclasses: Font actions in XeTeX according to what is being processed
 - facture: Generate an invoice
 - parsa: A XeLaTeX package for theses and dissertations at Iranian Universities
 - xesoul: Use the soul package with XeLaTeX
 - xecyr: Using Cyrillic languages in XeTeX
 - xeindex: Automatic index generation for XeLaTeX
 - zitie: Create CJK character calligraphy practicing sheets
 - bidi-atbegshi: Bidi-aware shipout macros
 - bidishadowtext: Bidi-aware shadow text
 - bidihl: Experimental bidi-aware text highlighting
 - xecolour: Support for colour in XeLaTeX
 - xecolor: Support for color in XeLaTeX
 - chhaya: Linguistic glossing in Marathi language
 - book-of-common-prayer: Typeset in the style of “Book of Common Prayer”
 - tipauni: Producing Unicode characters with TIPA commands
 - textcsc: Simple commands for caps-to-small-caps text
 - realscripts: Access OpenType subscript and superscript glyphs