Seeking advice on replacing the retiring 'Fiona H' AI voice in animations

I’m currently working on a lengthy animation that I’ve been using ‘Fiona H’ AI voice for. As the WellSaid voices are retiring, I’m looking at changes the voice to another AI voice but as the animation is pretty long, I’m worried the animation will be completely out of sync to a new voice and will require a lot of tweaking.

Has anybody recently changed to a different voice that they found not so different to Fiona H? I suppose this will just be a case of trial and error to see what voice causes the least disruption to the animation but thought it would be worth asking in the community in case anybody has recently done the same.

Thank you so much :)