As mentioned above. Over 16mm is wanted, 17mm works well, but 19mm is pretty much ideal. Our Toric 8x42 does have 19mm of ER and would work well for you. If you want more may, ER goes down a bit, but our 10x still gets 17mm ER.
https://www.tractoptics.com/products/binoculars/toric-binoculars
