I hardly use it but this site has a bunch of alternatives.
There are very few websites on such a broad information basis, which provide free information; they are an excellent basis for further research, with links to relevant sources.
They even provide a list of encyclopedias:
https://en.wikipedia.org/wiki/List_of_online_encyclopedias
Wikipedia itself is a good place to start, as it always provides other references.
For simple matters of fact, Wikipedia is excellent. For matters of opinion, it pays to dig deeper.
⭐ Click here to see the recent version of this page ⭐