I recently did a bunch of research into the best icon libraries. There are quite a few options available, so instead of telling you my favorite I will just link to the various libraries and let you decide! Top picks: The Noun Project:https://thenounproject.com Pixel Lovehttps://www.pixellove.com/browse/line/simple/ Nova:https://www.webalys.com/nova/ultimate-pack.html Orion:https://orioniconlibrary.com/all-icons Material:https://material.io/resources/icons/ Streamline:https://app.streamlineicons.com Fontawesome: https://fontawesome.com/icons Glyphicons:https://www.glyphicons.com/sets/basic/ Flaticon:https://www.flaticon.com/