Earlier this year, I helped the guys at Make Lemonade launch a fantastic project called Iconic
Iconic is a set of 650+, free and paid, “do wtf you want with” pixel-perfect icons. James McDonald and Orman Clark design the icons, and new icons are added every week. Icons can be downloaded in PNG or SVG format, a Figma file, and React/Vue components.
Iconic is an excellent resource for designing any UI that requires icons.