MONEY:
- Real estate
- Foreign currency trading
- Marketing
- Retirement
- Debt
- Getting a job
- Consulting
- Time management
- Investing
- Starting a business
- Making money
HEALTH:
- Natural weight loss
- Stress
- Anti-aging
- Muscle gain
- Easy exercise
- Fat loss
- Diets/Recipes
- Natural healing
- Wellness
- Specific health problem
RELATIONSHIPS:
- Dating
- Relationships
- Sexuality
- Marriage
- Divorce
- Conflict
- Body language
- Parenting
- Education
And a bonus niche: Hobbies in which people are spending good money, like golf and gardening.