TEFL is fun.
If you decide to pursue this seriously don't do a free course though.
The cheap ones don't teach you well enough. But do the freebie to see if you really like it before spending the money.
(Bou.. Fuck thee in an offly direction, Sun 1 Oct 2023, 14:51, archived)

It will be a serious part time evening thing

(President of the lighthouse Organised the Trumpton riots, Sun 1 Oct 2023, 15:20, archived)

Okay.
I work on Preply. I earned a low rate initially, $8 per hour but as you get more experience you can put your rate up. Preply does not require a TEFL but it is advisable to get students. If you have a degree you can go onto more lucrative sites but I don't have one. There are many platforms you can teach on. Cambly is another one.
(Bou.. Fuck thee in an offly direction, Sun 1 Oct 2023, 15:40, archived)