This is an improvement suggestion.
It would be great if it would be possible to search from a list only of matching nodes when extending the wire.
Please see the image below.
At this point, the search window should appear and I would like to type and receive a list of matching nodes.
This idea is taken from Unreal Engine. Please see the image below.
Additionally, the search there is really fast. But I complained about this in a different post 
It is a nice idea but that would become quite annoying when you already have the nodes you want to connect it to so every time you go to connect, a popup window shows. Maybe while holding the wire, you right click, and it shows a filtered search bar like you said?
In Unreal Engine it works this way: you click on the output and holding the left mouse key down drag the wire to the input field where you release the key. When released on the empty space the search box appears.
In Dynamo you click on the output and click on the input. Actually, when you click in Dynamo on the empty space when the wire is active the search box appears but then the wire is not connected to the selected node automatically. One needs to click on this node again.
There is not much difference between these to ways but I believe UE way is little simpler. Less clicking.
This isn’t built in but I think you might be able to make a view extension for it if you were so inclined. Would be quite nice.
Even just to generally search nodes by output. I’m in the middle of searching for nodes that would output an element. It doesn’t seem like there’s a way to quickly show me all the nodes that would apply. Kind of disappointing. I hope I’m missing something.
If you’re in a modern build, double click on the output and it should start node autocomplete.
You may need to enable this in your Dynamo preferences though if you’re in an older build.
Wow, I was missing something… Thank you 
All this time… i did not know this existed 
That’s really cool!
It’s only been around for 3 years and 8 months… 
The versions back then were as good as they are now though.
