This can be at newspapers, magazines, publishers – anywhere that produces material that needs checking.
It’s best to start a) local and/or b) the types of organisations or businesses you would like to work for eventually. It helps if you see the attachment as part of your career-building process.
Also do some networking – see if any friends / family / colleagues can open doors for you where they work.
Once you’ve compiled a target list, write to them individually and enclose your CV and offer to check their work. You may be able to arrange to do this online if location is a problem.
See our proofreading course