>>4332935By Google.
Actually, I don't know if this is a completely even comparison because I'm getting no data for "にじさんじ" as a web search and there's no "Hololive/ホロライブ" as a topic, but "Nijisanji" as a topic wins against both "ホロライブ" as a web search and the suggested "Hololive Production" as a company.