Is there anything like G Adventures or Intrepid but where the travelers are mostly Americans and not Europeans/Australians?

Title: Seeking American-Focused Alternatives to G Adventures or Intrepid

Are there tour operators similar to G Adventures or Intrepid that primarily attract American travelers rather than Europeans or Australians?

As an Asian American, I feel more comfortable traveling with Americans because I worry others may be biased or exclude me. I’ve lived in both the United States (California) and Europe, and the treatment I’ve received has been markedly different.

In California, Los Angeles, and Orange County, there’s a large Asian population, and people generally recognize that racist remarks are unacceptable. I haven’t encountered the kinds of slurs I’ve heard in Europe, where I feel many people aren’t as familiar with addressing Asians respectfully.

G Adventures–type trips look appealing, but it seems the majority of participants are European or Australian. I don’t want to call ahead to check demographics, I’d simply prefer traveling with Americans.

Are there tours that are similarly priced and primarily attract American travelers?

Update: I’ve already discovered some new tour companies from this thread that I’ll explore, so I don’t need further recommendations. No need to debate or try to persuade me about Europeans.