URL

https://www.google.com/search?q=select+option+multiple+desing&rlz=1C1UEAD_enIN943IN943&oq=select+option+multiple+desing&aqs=chrome..69i57j33i10i160.10920j1j7&sourceid=chrome&ie=UTF-8

https://dribbble.com/shots/14424197-Material-X-design-system-UI-kit-Figma-Multiselect

https://setproduct.com/material-x/pricing

https://dribbble.com/tags/multiselect#

https://www.cssscript.com/demo/select-box-virtual-scroll/

https://www.cssscript.com/tag/multiple-select/