Local Certification Programs at Colleges (ask about CCP as a starting point)
Cuyahoga Community College
Monster
https://www.monster.com/jobs/l-cleveland,-oh.aspx
Career Builder
Indeed
https://www.indeed.com/l-Cleveland,-OH-jobs.html
Snagajob
http://www.snagajob.com/jobs/ohio/cleveland_jobs.html
SimplyHired
Craigslist
https://cleveland.craigslist.org/search/jjj