Approaching a writer for coverage is a delicate process. If you take your due diligence serious you will find the number one complaint from writers is receiving unrelated topic pitches. You must research the person you are pitching. Find out the writer/interviewers beat and interests before you approach them.
If your pitch is not related to a writer’s wheelhouse of topics, move on, or wait until something is directly related to the subject matter they cover. Don’t blow it.
Research the person your pitch is going to. Check their style, see what they share and realize you are one of many trying to get in front of their audience. Each pitch you send out will get better. Learn. Be persistent but not a nuisance.