Stumbled upon the same issue lately. I had a RabbitMQ, as a Helm package, and two additional Helm packages that I built locally.

I wanted to gather the three in a single Helm package, but found no way of ordering the installation of the Helm charts, since for example the two other packages need the RabbitMQ credentials.

I found using hooks brings more complexity than necessary to the solution and I preferred to simply install them separately, in the order that I want, while I can do any manual changes in between the steps.

Here is an article that discusses this topic and might be of interest to you.

Now there might be a way to properly order dependencies if you are willing to try Helmsman. I can't make any judgement about it, since I just found out about it, but from its README under Features:

Define the order of managing releases: you can define the priorities at which releases are managed by helmsman (useful for dependencies).

Here is the relevant documentation.

i don't think there is anything from helm chart side but probably you can solve this using the init containers.

if in your charts there is database and used by the application and getting crashed you can use the init container to check to complete lifecycle of pod.

For more you can refer this : https://github.com/helm/helm/issues/1713

You should look into helmfile and split your stack into one helmfile per application. Since helmfiles inside a folders are applied in an alphabetically order you can ensure the order through file naming conventions.

File structure:

helmfile.d/
  00-app-1.yaml
  01-app-2.yaml
  02-app-n.yaml

Execute it with this command: helmfile -f path/to/directory