What can I use instead of LaTeX?

What you can use instead of LaTeX depends on whether you mean natural latex material or LaTeX typesetting software. Instead of natural latex material for gloves, you can use nitrile gloves, vinyl gloves, or polyethylene gloves, nitrile being most popular as it is latex free, chemical resistant, and does not cause latex allergy. Instead of latex balloons, you can use Mylar foil balloons. Instead of latex condoms, you can use polyurethane or polyisoprene condoms. Instead of latex mattress, you can use memory foam, polyfoam, or hybrid mattress. Instead of latex elastic bands, use spandex or elastane. Instead of latex paint, use oil based or acrylic paint labeled latex free. Instead of LaTeX typesetting software for document preparation, you can use Microsoft Word, Google Docs, LibreOffice Writer for general writing, or for academic writing with math, you can use Microsoft Word with MathType, Google Docs with add-ons, Markdown with Pandoc, LyX which is graphical front end for LaTeX, or Overleaf alternatives like Typst which is modern typesetting system. So alternatives to natural latex are nitrile, vinyl, polyurethane, memory foam, and alternatives to LaTeX software are Word, Google Docs, LyX, and Typst.