I'm trying to type the Cantonese character 哋 in Latex, but the usual methods for typing Chinese don't seem to be working

You gave no clues as to what you tried or what error you got, but my Browser used Microsoft YaHei font to display your question, so I did same here (with xelatex)

documentclass{article}

usepackage{fontspec}

newfontfamily{cfont}{Microsoft YaHei}

begin{document}





I'm trying to type the Cantonese character {cfont 哋} in Latex, but the usual
methods for typing Chinese don't seem to be working. How can I
type {cfont 哋} (and other characters used in Cantonese)


end{document}

Or on Overleaf with the font WenQuanYi Micro Hei (picked at random from Overleaf's Chinese fonts page)