Looking for a solution to reproduce 3-level cascading select field functionality

[Daniel Szewczyk]

We are looking for a solution for Jira Cloud (Service Mgmt) that will allow us to implement the functionality of a 3-level cascading select field, i.e.: I select an option in the first drop-down, then from the narrowed list I select another option in the second drop-down and then I have the third drop-down, where depending on the previous choices, I see further narrowed down options I can select from. We have already looked at solutions such as:

1. Assets: unfortunately, despite the ability to build basic functionality and filter options in subsequent Assets Object fields, changing the selection in the first field is not able to clear the values of the remaining fields (to eliminate bad combinations).
2. Scriptrunner: the current Behaviors functionality in Cloud does not provide such an option (or we lack knowledge on how to implement it correctly).
3. OOTB Jira: Simple double cascade + first selection level implemented as separate issue types: although this would work correctly, we are unable to use it due to the multitude of other existing dependencies with this issue type (workflow, automation, plugins, etc.).

I would appreciate any suggestions you might have on how to achieve this functionality in Jira. We're happy to investigate any plugins that might help us with that.
Thank you!