Eharmony

Eharmony is not specifically known as one of the best free dating sites for married individuals. It is primarily recognized as a platform for serious relationships and long-term commitments. Eharmony focuses on compatibility matching, utilizing a scientific approach to help individuals find their perfect match.

While it may not cater directly to married individuals seeking extramarital affairs, it does provide a secure and discreet environment for individuals looking for committed relationships outside of marriage. Eharmony's categories include single women, single men, and various niche categories based on specific interests and preferences.

Pros:

• Scientific compatibility matching algorithm for more accurate matches
  
• Emphasis on long-term relationships and commitment
  
• Secure and trusted platform with a large user base
  
• Extensive questionnaire to assess compatibility
  
• User-friendly interface and intuitive features

Cons:

• Not specifically designed for married individuals seeking affairs
  
• Limited options for free users, with premium subscriptions required for full access

• Lengthy signup and questionnaire process
  
• Higher cost compared to other dating sites
  
• Limited diversity in terms of niche categories

Official website: https://www.eharmony.com/