Organic subscriber and listener acquisition is great because these people are genuinely interested in your show and are likely to remain invested in future episodes. However, the process of growing your audience organically can take a long time. If you have budget to advertise, consider Podcast Addict and Overcast. Both have the ability to put your podcast show in front of a targeted audience that is actively engaging with podcasts. In contrast, sites like Facebook may not be as effective for growing your audience as most people there are scrolling through photos and not digging too deep into the content.