OutlierKit
6.9#3 in youtube seo toolsFrom $299 a yearWebAPIExtension
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OutlierKit suits creators and teams researching YouTube niches, competitors, keywords, scripts, sponsors, or monetization. The site identifies faceless creators, educators, personal brands, B2B creators, agencies, and multi-channel teams as audiences.
RankVids suits YouTube creators who want research, optimization and channel review tools in one browser-based service. Its channel and thumbnail analysis may also suit creators focused on improving existing uploads.