Many jobs today are though recruiters and agencies. If you don't have one, create a Linkedin account. The recruiters constantly search Linkedin. Post your resume, your skills, show what you have experience at. Specify that you are looking for work from home type of work. You don't need to tell anyone why.
It is, however, a difficult field to break into. The competition is fierce, and many businesses pay their employees little. I think if you want to transcribe audio you have to choose a reliable service like*transcriberry.com, because there are many who do a poor job.