Tell me what you need?
Cloud, Calender Sync, Contact Sync and Document Collaboration? I use a Nextcloud Instance provided and managed by my university (who have a contract with Nextcloud, a German Company)
Hetzner and many others sell managed Nextcloud Instances
For the Pictures I use a Photoprism Instance running on a VPS, but for Drop-In solutions you can also use a Plug-in for Nextcloud, or buy a managed instance, like on PikaPods