Thomas*Edit: Solved, it's disroot.org. Thanks for your recommendations! Highly appreciated!*
Dear Fedizens, I kindly ask for your advice.
I am looking for a free Nextcloud account, but the ones recommended officially by @nextcloud are just 6 month limited offer or without https.
I am fine with 100MB space, just like to test syncing of calendar, contacts and stuff. But I need encryption (disk space and https).