(still up but mostly historical) – Best for older /adv/, /trv/, /soc/, /tv/, /x/, /co/. Limited to ~2015–2021 content for some boards. https://archive.4plebs.org/
Archiving 4chan content can serve several purposes:
Elias clicked the link for the /wg/ archive. He was greeted by a search bar that looked like something out of the early 2000s. He typed in "Y2K Aesthetic 2019."
If you are looking for a or a particular thread from a certain year, let me know and I can point you toward the most likely archive!