Sorry, I don’t understand your question. If you want something modern that’s as easy to navigate, learn, and play as possible, and that behaves in a consistent way, then you should consider the TR-8.
There are a lot of differences between the TR-808 and TR-909 in terms of how you operate them, in the features they provide, and in the way their sequencers work. Of course there are also a lot of similarities, but a lot of the details are different.
These differences translate directly to the TR-08 and TR-09. The stuff that has been added to the originals is consistent between the TR-08 and TR-09, but very little has been added, so that’s not really relevant.
Both are extremely playable and a ton of fun, just like both of the originals.