@Colby Canterbury do a quick Google search or you can use ChatGPT for publishing companies that are accepting submissions currently. Most of the sites have a general email somewhere where u can submit. Some libraries have preferences on how they would like to receive files. Most want streaming links, nothing that is going to clog up their e-mail storage. The best approach I have found is to send an email that is titled “ new composer inquiry” In the email just say who you are, what genres you specialize in, provide a streaming links, preferably a Disco.ac link and ask if they are accepting new composers. Bonus points if you research the libraries ahead of time to make sure you are pitching the correct type of music. Don’t approach a trailer house with dramedy tracks. You could also say, hey I noticed you work on “these types of projects/shows” and say I compiled an album that is likely to fit. This is a section we could dove into deeper so hit my DMs if you have further questions. Don’t get discouraged and keep at it!