Microsoft Sculpt Ergonomic Mouse is a pretty fair replacement. They're getting harder to find too tho
They're getting harder to find too tho.
https://www.amazon.com/Microsoft-Sculpt-Ergonomic-Mouse-L6V-00001/dp/B00D68ZVY8/ref=sr_1_3?crid=38M56PU07YIS9&keywords=sculpt+mouse&qid=1695949374&s=electronics&sprefix=sculpt+m%2Celectronics%2C109&sr=1-3&ufe=app_do%3Aamzn1.fos.006c50ae-5d4c-4777-9bc0-4513d670b6bc