1 - create regular content on your blog, YouTube channel or podcast - this gives you opportunity to write to your readers regularly, informing them about the content on your blog.
2 - promote your mailing list or a freebie within your blog posts, podcast or YouTube videos. So, people who are visiting your page and not your subscribers yet, can join your mailing list too.
3 - promote your mailing list or a freebie on social media regularly. Use social media to bring new subscribers, talk about it in your posts, stories, or reels.
4 - Use Pinterest as a long-term strategy to get new subscribers. Create new pins that will link to your blogposts or a landing page.