After finishing the training on a medical transcription school, you must first attend the on the job training.
This type of employment can be as achieved on various medical transcription companies offering this type of internship. You must first send you OJT application to them. This would practice your skills in looking for a job.
It can be a tedious way of looking of an internship as medical transcriptionist. Some companies may offer a salary package or some may only give you allowances. You may not be hired as a medical transcriptionist also, keep that in mind.