No, but you could buy mine 😉

Yes, Chime is also available individually, e.g. on Amazon for €39.99
The question is whether you really need more than one. I can hear the Chime well over three floors in the house, you can adjust the volume and the sound.
Another Chime can be useful if you want to hear it in an outbuilding, for example.
On the other hand, Eufy triggers an event on every contact on every mobile phone or other device where you have the Eufy app installed, which may make the Chime redundant: because I can highlight all Eufy events acoustically on the mobile phone itself, whereby there is another difference here between mere camera contact or an actual ringing event.

That would even be a good solution for me, but it's hard to do via Community questions 😉