The simplest way to optimize anchor text for internal links is simply to make sure the anchor text uses descriptive keywords to accurately describe the page or idea you're linking to¹. But be careful! In SEO, it's easy to "over-optimize" your anchor text by over-relying on repetitive, keyword-rich phrases. In the real world, people don't always link with exact-match keywords, so you want to avoid looking unnatural or spammy².

Here are some best practices for optimizing your anchor text for internal links:

- Use different variations of your target keywords or phrases, such as synonyms, partial matches, or related terms¹².

- Don't use generic or vague anchor text, such as "click here", "read more", or "this page". These don't provide any context or value to the user or the search engine²³.

- Use descriptive and informative anchor text that tells the user what to expect from the linked page. For example, instead of linking with "SEO tips", you could use "SEO tips for beginners" or "10 SEO tips to boost your rankings"²⁴.

- Keep your anchor text short and concise. Avoid using long sentences or paragraphs as anchor text, as they can look cluttered and confusing²³.

- Don't use the same anchor text for multiple pages on your site. This can confuse the user and the search engine about which page is more relevant for that term²³.

- Don't use URLs as anchor text, unless they are short and memorable. URLs don't provide any semantic meaning or context, and they can look ugly and unprofessional²³.

- Don't include punctuation marks in the anchor text, such as commas, periods, or quotation marks. These can interfere with the readability and functionality of the link³.

- Automate internal link insertion with caution. If you use a tool or plugin to automatically insert internal links on your site, make sure you review them manually and adjust them if needed. Some tools may not choose the best anchor text or the most relevant pages for your links².

By following these best practices, you can optimize your anchor text for internal links and improve your SEO and user experience.

Source: 
(1) Anchor Text: Best Practices for Optimizing Anchor Text - Moz. https://moz.com/learn/seo/anchor-text
(2) Internal Link Anchor Text: Why it Matters for User Experience and .... https://linkwhisper.com/internal-link-anchor-text/
(3) How to Optimize Anchor Text for SEO (10 Best Practices). https://seochatter.com/how-to-optimize-anchor-text-for-seo/
(4) What Is Anchor Text? Meaning, Examples & How to Optimize - Semrush Blog. https://www.semrush.com/blog/what-is-anchor-text-and-how-can-i-optimize-it/