Bridge TEFL - International Diploma in English Language Teaching TESOL ($1,000) + 9 ACE credits

https://bridge.edu/tefl/courses/online/idelt

This international diploma is available for $1k. It will give you 9 graduate level ACE credits too!
I think this type of credential can be helpful if you want to travel abroad and work there.

 

This one is a diploma, not a certificate!

Certificate < Diploma < Associate's Degree < Bachelor's Degree

 

UP TO 9, but could only be 3, according to the link. Not sure if TESU allows for transferring in grad credits, but even if they do, I'd bet it'll be like how they handle the Google IT Support certificate for undergrads - they'll give only the minimum amount of credits.

Many universities in the UK and Australia will give credit for a CELTA to students undertaking a Master of TESOL. This looks like a good US alternative to this (as the CELTA doesn't have the same recognition outside of Europe and Australia).

 

The CELTA may not be as well known in North America but it is the most respected credential worldwide for teaching English as a foreign language. Employers really prefer it to anything else. The Trinity CertTESOL is comparable but usually comes in as second best to the CELTA.

They also have the DELTA, which is a diploma level program. It is an even higher level program that you need several years experience before you can apply.