Selection of container orchestration platform

I'm trying to manage my docker containers using container orchestration platform. There are a few of them can be used.

Variations

Docker Swarm

Easy to setup and manage existing docker machines.

Kubernetes (K8s)

Widely used.

K3S

K3s is Rancher’s k3s Kubernetes distro, lightweight, single binary, and low resource usage.

Openshift

Complex

Consideration

Unlike company environments, most of my docker containers applications have individual database. The application usage is low, autoscaling isn't a requirement for me but the backup and restore is important.

References

k8s vs k3s
Docker Swarm vs Kubernetes: how to choose a container orchestration tool