Is there a Stack Exchange community I can ask for website recommendations? Specifically, I am looking for a website that tells about the differences between two words that are often confused with each other. For example, race and ethnicity, affect and effect, mass and weight, weather and climate, college and university, etc. Basically, such a website would be like a catalog for "What is the difference between..." questions. I would be very grateful if someone pointed me to such a website.
Such a question is off-topic on Software Recommendations: see Can I ask for recommended websites? on their Meta.
Some sites in the network allow for recommendations (of products, tools, but also websites). Your best bet is to find a site about the topic your question is about, check if they allow recommendations or not, and if so, what requirements they have for recommendation questions.
Or try other Internet sites like Quora.
In keeping with Glorfindel's suggestion of finding an appropriate site on the SE network, then seeing as the subject matter is the use of the English language, maybe the English Language Learners stack is more appropriate, although I am not sure if they accept "suggest a web site" type questions. Here is the ELL.SE "on-topic" page.
Or maybe English Language and Usage? Although. I suspect that the former site may be more appropriate.
Is there a Stack Exchange community I can ask for website recommendations? Specifically, I am looking for a website that tells about the differences between two words that are often confused with each other
Alternatively, one could ask a dataset request on https://opendata.stackexchange.com/ (dataset for differences between two often confused words).