How Do I Increase the Number of Members in My Newsletter?

Hello I'm Uğur KILCI, I have a website called Girişimzel. Entrepreneurship oriented curation site. I produce content in 6 main categories related to entrepreneurship. And every week I share new content in the newsletter. Categories: - Entrepreneurship Movie - Entrepreneurship Series - Entrepreneurship Documentary - Entrepreneurship Book - Entrepreneurship Podcast - Entrepreneurship YouTube Channel https://www.girisimzel.com/ Now you know my concept and what I am trying to do. How can I increase the number of members in line with this project? I'm sharing shorts on YouTube right now. E.g: https://www.youtube.com/shorts/gFN1_Vls4Jg I just published a newsletter. https://www.getrevue.co/profile/girisimzel/issues/11-new-content-girisimzel-weekly-newsletter-1139360 Newsletter is an area I am not familiar with. I am open to your suggestions. Thank you.