1. Coursera:
- University of California, Irvine: Fundamentals of Teaching English as a Second Language (TESL) Specialization
- University of Queensland: TESOL: Teaching English to Speakers of Other Languages Specialization
2. edX:
- University of Queensland: English as a Second Language (ESL) Teaching Methodology Course
3. International TEFL Academy (ITA):
- TESOL Online Course
- TESOL Advanced Online Course
4. TEFLPros:
- Teaching English as a Second Language Online Course
5. TESOL International Association:
- Online TESOL Certificate Course
- TESOL Certificate Course - Intermediate Level
6. Open University:
- Teaching English to Speakers of Other Languages (TESOL) PG Cert
7. Udemy:
- TESOL Certified English Teacher Course
- Teach English As a Second Language (TESOL) Certification
8. University of Cambridge:
- ESOL Certificates in Teaching English as a Foreign Language (CELTA)
9. Arizona State University:
- TESOL Graduate Certificate (Online)
10. The New School:
- Teaching English to Speakers of Other Languages (TESOL) Certificate
Remember to verify the accreditation of any institution offering online TESL certificates to ensure they meet industry standards and are recognized by potential employers. Additionally, some TESL programs may require supervised teaching practice, which may be challenging to complete entirely remotely.