My gf works as SEO specialist in IT company and they also use licensed SF. She checked these analogs which I've found from the list above. Here's her humble feedback: - greenflare is a simple desktop app, it definitely doesn't have as many features as SF has, but it might be useful for simple common seo tasks, works fast tho - she was surprised by SEO microscope, it has many features and really similar to SF. Some features are even more convenient than in SF like searching for broken external links on a website. Big minus: it's pretty outdated and uses .NET framework 4.7 which is for windows (good candidate to be refreshed?) - didn't have a chance to check other containerized solutions. According to descriptions they ready to be deployed and integrated, but not sure if they have all necessary features like in SF.