Here are a few other tools that you can use to paraphrase data, which are known for their efficiency and are available for free:

1. Spinbot: Spinbot is a popular online paraphrasing tool that can quickly rewrite text and make it unique. It offers various options to customize the level of paraphrasing and is known for its speed.

2. WordAi: WordAi is an advanced AI-powered paraphrasing tool that can rewrite sentences and paragraphs while maintaining the original meaning. It has a user-friendly interface and provides high-quality paraphrased content.

3. Prepostseo: Prepostseo offers a range of free online tools, including a paraphrasing tool. It can rephrase sentences, paragraphs, or entire articles, and provides multiple synonyms to choose from. It also has an option to upload files for paraphrasing.

4. SmallSEOTools: SmallSEOTools provides a paraphrasing tool that can rewrite text while preserving the original meaning. It offers a simple interface and allows you to paraphrase up to 1,000 words at a time.

5. Article Rewriter Tool: Article Rewriter Tool is an online paraphrasing tool that can rewrite sentences and paragraphs to make them unique. It offers a quick and easy way to paraphrase text and is free to use.

Remember to always review and edit the paraphrased content to ensure it accurately reflects the original meaning and context.