\documentclass{article}
	\usepackage{graphicx}
	\usepackage[colorlinks]{hyperref}
	\usepackage{hyperref}
	\usepackage[style=numeric, backend=biber, defernumbers=true]{biblatex}
	\bibliography{references.bib}
	\DeclareFieldFormat{labelnumber}{\ifentrytype{misc}{\Rn{#1}}{#1}}
	\hypersetup{citecolor=black}
	\hypersetup{urlcolor=blue}
	\hypersetup{linkcolor=black}
	\usepackage{multicol}
	\graphicspath{ {images/} }
\begin{document}

\cite{andrady_1, NSF_1}

\printbibliography[nottype=misc]
\printbibliography[title={Online Sources}, type=misc, resetnumbers]

\end{document}

This is part of references.bib:

@article{andrady_1,
title={},
}
@misc{NSF_1,
title={},
}