Alternative Platforms for Selling Newsletters Efficiently

Is there another place to sell newsletters aside from duuce? There's an incredibly lengthy process & approval time needed I'm looking to sell 11 newsletters, most below < 5k subs & grown during the x2 boost period (US, UK, CA majority) open to do below $0.30-50/subscribers, in the content creator/jobs/ads/e-commerce niche 1 by 1 listing is fr too much work