If you want better "open" models, these all sound better for zero shot:
Zeroshot TTS: MaskGCT, MegaTTS3
Zeroshot VC: Seed-VC, MegaTTS3
Granted, only Seed-VC has training/fine tuning code, but all of these models sound better than Chatterbox. So if you're going to deal with something you can't fine tune and you need a better zero shot fit to your voice, use one of these models instead. (Especially ByteDance's MegaTTS3. ByteDance research runs circles around most TTS research teams except for ElevenLabs. They've got way more money and PhD researchers than the smaller labs, plus a copious amount of training data.)
Separately, if Israel nukes Iran, will we be OK with it? Is there anything Israel can do that would make us say "Stop"?