Automated Signup Form Filler

I'm looking to code a tool for automatically inputting contact information into signup forms across 500+ websites.

Required Fields:
- First Name
- Last Name
- Phone Number
- Email Address
- Address

Ideal Skills and Experience:
- Proficiency in Python, JavaScript, or C#
- Experience with web automation tools (e.g., Selenium, Puppeteer)
- Ability to handle CAPTCHA (if needed)
- Familiarity with file formats (CSV, text, database) for input data

Please provide examples of similar work done.