I am not sure I would call myself a birder or a flash user. Most of the time it is just lens, body and myself shooting wildlife.

But here is what I have:

Wimberly has what you are asking for.
I have had it for years, not just for birding. It gets the flash up off the camera and over the lens. I attache it on the plate I have on the foot of the lens. They have several modular pieces and you can do many things with it. There are several variations offered. Also I have used this piece as a handle, its very sturdy.

https://www.bhphotovideo.com/c/produ...oto_Combo.html

Also get the cord to go to the flash.
https://www.bhphotovideo.com/c/produ...mera_Shoe.html

I have a beamer, I know some here like it.
I felt like it was a cheaply made gimmick piece. It works but for what I do it is to frail.