[samegreatsleeve]

Britannica costs $5 a month. Their articles are excellent.

A free source written by top philosphers is Stanford Encyclopedia of Philosphy. That should be the first hit.

If Wikipedia wants to be a link farm with citations and links to every source on some topic, that might be an OK service. That's not what they are. They claim to be an encyclopedia. They get it 80% right, but 20% wrong is unacceptable for the world's go-to source for information. Especially when the better alternatives are just as accessible; they only lack SEO.