The list of top 10 fastest-growing job fields this year may vary depending on factors such as region and economy. However, based on various reports and projections, the following job fields are expected to experience significant growth in 2021:

1. Data Science and Artificial Intelligence: With the increasing emphasis on automation, big data, and machine learning, professionals in this field will be in high demand.

2. Cybersecurity: As digital threats continue to rise, the need for cybersecurity experts to protect sensitive data and systems is expected to grow rapidly.

3. Healthcare: The COVID-19 pandemic has highlighted the importance of healthcare professionals, including doctors, nurses, pharmacists, and medical researchers.

4. Renewable Energy: As the world’s focus on sustainability increases, jobs in renewable energy, like solar and wind power technicians, are projected to grow.

5. E-commerce and Online Retail: The rapid growth of online shopping has led to increased demand for professionals in e-commerce, digital marketing, and logistics.

6. Remote Work and Telecommuting: With the shift towards remote work and virtual collaboration, professionals skilled in remote work technologies and management are expected to be in demand.

7. Digital and Content Marketing: As companies increasingly rely on digital platforms for their marketing efforts, professionals with skills in digital marketing, SEO, and content creation will be sought after.

8. Financial Technology (Fintech): With advancements in financial technology and online payment systems, professionals in fintech, digital banking, and financial analytics are poised for growth.

9. Mental Health Services: The COVID-19 pandemic has placed significant stress on mental health, leading to an increased demand for mental health counselors, therapists, and other support services.

10. Sustainable and Green Jobs: With the growing concern for the environment, jobs in sustainable development, energy efficiency, and waste management are expected to expand.

It’s important to note that these job fields are subject to change based on external factors, such as technological advancements, economic conditions, and global events.