I refer to this site: http://mirrors.ctan.org/macros/latex/contrib/mathalpha/doc/mathalpha-doc.pdf and find a lot of font types I want. But this material just doesn't show a clear example of how to type the font style it has listed.
The following font styles are the ones I need. But I can't type it according to the PDF. Could anyone show a clear example of how to type them and other styles in the material?

mmafont is old and may no longer be supported. The linked question and answers do not actually address this. So I vote to reopen. – Sandy G Dec 17 '21 at 03:44