1. Real Estate Agent: A real estate agent helps clients buy, sell, or rent properties. With the right skills and market knowledge, you can earn a substantial income through commissions.
2. Commercial Pilot: Becoming a commercial pilot requires obtaining a license and undergoing training. Once qualified, you can work for airlines or private companies and earn a handsome salary.
3. Web Developer: In today's digital age, web developers are in high demand. With coding skills and creativity, you can create websites and web applications for businesses, earning a good income.
4. Plumber: Skilled plumbers are essential for maintaining and installing plumbing systems. Plumbers often earn high hourly rates and have the opportunity to start their own businesses.
5. Digital Marketer: With the rise of online marketing, digital marketers play a crucial role in helping businesses promote their products and services. Skills in SEO, social media marketing, and content creation can lead to well-paying jobs.
6. Electrician: Electricians install, maintain, and repair electrical systems. Their expertise is highly sought after, and they can earn a good income, especially with specialized skills in areas like industrial or solar power.
7. Graphic Designer: Graphic designers create visual content for various mediums, including websites, advertisements, and print materials. With a strong portfolio and creativity, you can find well-paying freelance or full-time positions.
8. Personal Trainer: As fitness and wellness gain importance, personal trainers have become highly sought after. With certification and expertise, you can work with clients one-on-one or in fitness centers, earning a good income.
9. Insurance Sales Agent: Insurance sales agents help individuals and businesses choose appropriate insurance coverage. With strong communication skills and industry knowledge, you can earn commissions and bonuses.
10. Freelance Writer: Skilled writers can find freelance opportunities in various industries, such as copywriting, content writing, or technical writing. With experience and a strong portfolio, you can earn a good income.

While a college degree may not be required for these jobs, acquiring relevant certifications, gaining practical experience, and continuously improving your skills will significantly enhance your chances of success.

Please note that the income potential mentioned can vary based on factors such as location, experience, and market conditions.

References:
1. Bureau of Labor Statistics - Real Estate Agents
2. Federal Aviation Administration - Becoming a Pilot
3. Bureau of Labor Statistics - Web Developers
4. Bureau of Labor Statistics - Plumbers
5. Bureau of Labor Statistics - Digital Marketers
6. Bureau of Labor Statistics - Electricians
7. Bureau of Labor Statistics - Graphic Designers
8. Bureau of Labor Statistics - Personal Trainers
9. Bureau of Labor Statistics - Insurance Sales Agents
10. Bureau of Labor Statistics - Writers