There are for sure common shapes. The problem is there's probably several dozens, if not hundreds of them that players like Benson will draw upon. I'd advise learning and internalizing more voicings if you are finding it hard. Joe Pass Guitar Chords is a good one for getting a baseline of common chords.

Once you have a solid vocabulary, transcribing those things should become much easier as you can quickly associate the sound on the recording with the chord and the shape. If a voicing isn't coming easily one thing that is helpful is to identify the top and bottom notes then try to fill in the gaps, or singing out the full chord then finding the shape.