Is there a 3rd party program that allows an "iTunes-like" interface with my iPod?

I want to use my 2022 MacBook Pro with my iPod Classic. Music doesn't support iPods, and I can't download iTunes with my Sonoma OS.

Is there a third party program that would allow me to have an "iTunes-like" interface with my iPod?

I tried using Finder to Sync with the iPod, but I don't want to lose the music on the iPod to Sync it with my Mac. The iPod has much more music on it than my Mac.

I have used old computers with iTunes to do my iPod manipulations, but these older Macs all come with their own difficulties which makes for a very impermanent and costly exercise.

In short, is there any way to use my iPod efficiently with my MacBook Pro, either through a 3rd party interface or any other way?

Thank you!

[Re-Titled by Moderator]