Only in certain jurisdictions, you can get around thos with a VPN... 

AJ1992

But first of all thank you for your reply. I have a look into it.
I only recently discoverd coincorner myself because of their gift cards.
They seem to be very bitcoin friendly but a little intransparent regarding their fees. At least from the information I can find on their website

bitb

I want to make monthly payments to e.g. YouTubers https://www.youtube.com/c/MagicalCryptoFriends/about or something like this https://donate.thedigital.gov.ua/
I want that the fiat amount stays the same and I don't have to watch the dollar price all the time when the price moves up heavily

Recurring Lightning Payments are now available at CoinCorner

https://blog.coincorner.com/recurring-lightning-payments-are-now-available-at-coincorner-8a643342597c

The problem is, ... CoinCorner only operates in certain jurisdictions.

Recurring subscriptions on bitcoin implemented with DLCs - Suredbits

https://suredbits.com/recurring-subscriptions-on-bitcoin-implemented-with-dlcs

But of course, ... that's not really available today.

As far as on-chain bitcoin, there's really not much that I could see related to subscription payments.  For one thing, you are paying a static address.  Address re-use should be discouraged, so I don't think that anyone is working to even build that functionality into their wallets.

There's actually a dismissive attitude towards subscription payments ... see the discussions here:

But what is the problem you are hoping to solve?  Maybe with more detals there's another solution than what you are asking: "send $x worth of Bitcoin to a static bitcoin address at certain points in time in the future".

bitcoin

Recurring bitcoin payments based on dollar

CoinCorner has this for Lightning.

*Recurring Lightning Payments are now available at CoinCorner*
https://stacker.news/items/66681
https://blog.coincorner.com/recurring-lightning-payments-are-now-available-at-coincorner-8a643342597c

The problem is, ... CoinCorner only operates in certain jurisdictions. 

There's also this approach using DLCs:

*Recurring subscriptions on bitcoin implemented with DLCs - Suredbits*
https://stacker.news/items/13337
https://suredbits.com/recurring-subscriptions-on-bitcoin-implemented-with-dlcs

But of course, ... that's not really available today. 

As far as on-chain bitcoin, there's really not much that I could see related to subscription payments.  For one thing, you are paying a static address.  Address re-use should be discouraged, so I don't think that anyone is working to even build that functionality into their wallets.

There's actually a dismissive attitude towards subscription payments ... see the discussions here:

https://stacker.news/items/55294

But what is the problem you are hoping to solve?  Maybe with more detals there's another solution than what you are asking: "send $x worth of Bitcoin to a static bitcoin address at certain points in time in the future". 