\documentclass{article}
\usepackage[default]{fontsetup}
\pagestyle{empty}
\begin{document}
$$\mathcal{ABCDEFGHIJKLMNOPQRSTUVWXYZ}$$
$$\mathchancery{ABCDEFGHIJKLMNOPQRSTUVWXYZ}$$
$$\mathscr{ABCDEFGHIJKLMNOPQRSTUVWXYZ}$$
$$
\mscra\mscrb\mscrc\mscrd\mscre\mscrf\mscrg\mscrh\mscri\mscrj
\mscrk\mscrl\mscrm\mscrn\mscro\mscrp\mscrq\mscrr\mscrs\mscrt
\mscru\mscrv\mscrw\mscrx\mscry\mscrz
$$
\end{document}