There are dozens of markets that employ content writers. This is not a definitive list but here are seven of the most popular:
Marketing
Social media (Facebook, Instagram, Linkedin, etc.)
Digital advertising (PPC, display, retargeting, native)
B2B sales (lead gen, outreach, closing techniques)
Content marketing (Blogs, YouTube, podcasts)
Email marketing (conversion, deliverability, automation)
Personal finance
Mortgages
Credit cards
Taxes
Insurance
Banking
Budgeting
Health conditions
Diabetes
Back pain
Dementia
High blood pressure
Crohn’s disease
Irritable bowel syndrome
Asthma
Aging
Products and services targeted at boomers
Specialty travel
Brain health supplements
Cosmetics
Part-time income
Individual professions
Trade journals
Blogs
Podcasts
Industry newsletters
Ghost writing
Books (for print)
Ebooks
Blog posts
Speeches
B2B Products (Especially Software)
Blog posts
White papers