I got a bunch of licenses when I was a low time pilot just to keep flying: CFI, CFI-I, CFI-ME also Sea Plane single and multi engine,
The last one got me in a Twin Otter on floats and now I logged 96 hours of multi engine and turbine time every month.
The airlines liked that and 11 years later I climbed into the left seat of a 747-200.
Yes, any license and any flying may help you in the future.
