Too Long; Didn't Read
Many websites offer guest post opportunities and you would probably love to get published at least in one of them. Don't think that publication owns you something - usually, it is the other way around. You have to offer something with value that both sides can benefit from. There's plenty of content online that can be easily reached and published or re-published. Your first email to the editor is everything. Know what you want and what you can offer, pitch clear. Don't ask how creators make money then?