We have the "Jooki Box" in use since its inception (the version before the current one), and it's a pretty good substitute. Allows to connect figurines to Spotify playlists, so if you have a Spotify Family subscription, you have a huge number of songs and audiobooks for kids at your fingertips with no additional cost.

The original box itself was way more expensive than the Toniebox, like double the price, but I think they've made it considerably cheaper when they released the second hardware version of it. And the original box still works until today, continues to be supported by their app and has already been built in a very sturdy way (I've opened it up once to add magnets inside, so the figurines stick on it, which they normally don't do - that's the one thing the Toniebox people got right).