https://lordicon.com/
https://codepen.io/ainalem/pen/pXrVmQ
https://iconscout.com/paper-illustrations
https://www.invisionapp.com/inside-design/design-resources/travel-icons-free/
https://motionicons.com/
https://www.flighticon.co/
https://pixelbuddha.net/freebie/city-life-icons-collection/
http://www.transformicons.com/
https://letswp.io/44-hand-drawn-arrow-elements/
https://www.dopeicon.com/
https://www.graphicsfuel.com/2018/08/60-free-seamless-patterns/
https://wordpress.org/plugins/iconpress-lite/
https://orioniconlibrary.com/
https://www.stockio.com/
https://icons8.com/c/animated-icons
https://material.io/icons/
https://uispace.net/
https://dribbble.com/shots/2888226-1800-Free-Minimal-Icon-Pack-20x20
http://atipofoundry.com/fonts/bariol-icons
https://pixelbuddha.net/freebie/paticons-Icons-and-ui-patterns