I have been looking for the best way to present math on web for a while and could find some solutions that widely adapted and used. Currently, MathJax and MathType are most versatile and well spread solutions for Math on Web
MathJax
It is JavaScript library that renders any form of math expressions like LaTex, MathML and so on. Specially used mainly for LaTex.
It renders math beautifully but only for math context not document context. For example, it will render Array but not Tabular.
The vanilla usage can be seen from HERE. It also provides modules for Drupal and plug-ins for WordPress including other platforms.
MathType / Wiris
Way back then, I would not be possible to think writing article about MathType in the year 2024. My office still have several boxes of MathType in storage room. Yes, you heard right I said boxes. Software used to be sold as packages in boxes in ancient time.
Since then, I remember it became one application of Microsoft Office suite. It was Microsoft Equation, I think, but I am not sure if I can recall it correctly.
Recently, I got involved Drupal project and found out CKEditor WIRIS module. It seems to mutate successfully from desktop solution to web solution. I can see it also has integrated into TinyMCE. As you can expect, you can search for MathType for TinyMCE.
Those two solutions will complete your math needs for your website, I think. It is great relief to see some of big players leading the market steadily.