The first step, open this link https://journalfinder.elsevier.com/ then input Paper tittle, abstract, keyword and field of research, then click Find journals or you able to input in MDPI website in this link https://www.mdpi.com/about/journals or Springer https://link.springer.com/journals/a/1, or IEEE Xplore https://publication-recommender.ieee.org/periodicals
List price apc
After you have input and find journals, the selected which is one the proper place for your paper. The you will see the word " List price apc" .............. What's mean of this word !!!,
Article Publishing Charges (APCs)
Irrespective of the publishing model chosen by the author, our goal is to ensure articles are published as quickly as possible, subject to appropriate quality controls, and widely disseminated. Where an author has chosen to publish open access, which typically involves the upfront payment of an article publishing charge (APC), we will also make their article immediately and freely available upon publication on Science Direct, in perpetuity, with the author’s chosen user license attached to it. Elsevier’s APC prices are set on a per journal basis, fees range between c$150 and c$9900 US Dollars, excluding tax, with prices clearly displayed on our APC price list and on journal homepages.
List Website of Free Journal Submission or Publishing
http://www.eigenfactor.org/projects/openAccess/fullfree.php
https://doaj.org/
http://www.journals4free.com/