Freepik

A huge free collection of icons in the vector - more than 200 000.
Choose a collection, get the content on the screen, you can download only what you need or the entire collection.
H always the whole collection is placed on the page, it needs to be flipped, but if we want to download the entire collection and press 'Download Pack', then we download the whole collection, not just the contents of this page.
What I saw, did not see the filler, for quantity. All icons look stylish.

I usually look at the Facebook icons. Usually the letter A is centered, although in the logo on the right. Here as it is necessary and in social icons I see VK.
That is, the icons are stylish, expressive, quality, fresh.
There is something to choose from, there is a search.

Large base of images in popular formats, including PSD and vector.
Postcard for any event, pictures for drawing infographics.