I remembered and found Steady HQ. Its a publishing service, a bit like Meedium, but seems more environmental and user friendly. Hosted in Europe it seems.
Its good for publishing texts, for journalists, for magazines and the like.
Quite what I was looking for, very simple to set up.
You can create support plans and have both open and paid for content, etc.
Its free and they keep their share of your subscriptions if you have any.
I decided for a non-public page for now though, that means its not listed and promoted by them, you need to know the URL.
Here you go in case you are curious:
https://steadyhq.com/en/jardin-invisible