I've 2 niche blogs and tried several ways of monetisation along the years. I only kept a direct ad (that adblocks can't detect) and amazon affiliates. I ditched Adsense (from 50€ it dropped to 1€/month) and tried donations (patreon, buymeacoffee, paypal) but it's not the right niche for that (art students).
If you keep your content focused/niche enough I think overtime you should have a nice following.
I would love to discuss the problems with your two blogs, I'm actually trying to solve them.
Not sure why we haven't added some such one-click "pay $0.2 for this article/video/etc" option to our web browsers. That was the whole promise of micropayments back in the day.
Good Content would be peer reviewed by its readers, like it happens here on HN, and those reviews would in return garant those contributing some discount or even reward.
We are so far away from that like earth from mars.
Imagine this: (1) The publisher starts writing quality content in order to gather as much subscribers as possible. (2) Th publisher gets a comfortable amount of subscribers. So it starts to wind down the content quality, thus reducing his costs. (3) Now the users aren't getting the quality they are paying for. (4) Maybe slowly, but surely the subscribers will cancel their subscriptions and ultimately lose their trust in the publication itself. (5) The world is balanced once again.
Now this last point is important, the relationship between the producer and the consumer is based on trust.