A hook that fires before wp_head() on the front end?

Thanks, @anon71742606! Happy to know that it was helpful.

But all credits go to kama.ru, I just quoted a list from the original page:
Порядок срабатывания событий (хуков)
By the way, it also contains a list of admin-side hooks, too.
(And there is even a complete database of WP hooks with useful filter)

I have no personal relation to that resourse. It’s a WP reference guide/handbook created by a passionte person - Timur. Probably this site is the oldest and the most popular wp-focused resourse in Runet. Many pages are in my bookmarks. The licence disallows direct copying of articles in whole, but allows quotations with opened hyperlinks, so I’m pretty sure you can use those lists in tutorial. But if you need some kind of guarantee, I can try to contact author and ask for a direct permission.

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