Best practice to use helm chart with my value.yaml files

[asaorgad]

Im wondering what is the best way to use existing helm chart, but with my values.yaml file,
I don't want to provide values in the values field, i want argocd to take if from a file.
I tried to template a chart ,( e.g. nginx) and it's seems to be too much work , because i need to create a helm repo , template the chart, push, and all that.
What is the best practice for that.