how to journal publication free of charge

There has been lot of choices found in the research journals, whether it should be paid or unpaid journals. But the problem with the unpaid journals are that they are time-consuming, so as per the students/authors has the scarcity of time. The article processing charges are generally term as APC in short, it has the concept same as the publication,that its publication fees or charge issue by the journals to make the work available open access either in open access por hybrid access.