This is one of my favourite pics of the bush variety called Tumbler F1.
I used to grow it every season and it was always among the earliest varieties to mature ... along with Red Alert.
For some reason, possibly the cost of seed, it seems to be losing popularity and more difficult to find in the garden centers and seed catalogues this past couple of seasons.
I now grow Tumbling Tom, Garden Pearl and Red Alert ... Red Alert being the most like Tumbler but much cheaper in seed cost.
There are many new cherry varieties being developed, especially among the tall cordon types, but I expect at some point in the future Tumbler will make a come-back - I hope it does!