The Sony a7iii is a great camera for both video and stills.  It features 4K video and incredible auto-focus capabilities.  These are the a7iii video settings that I use to control depth-of-field.  To create a7iii videos with bokeh, this is how I do it.

Available on Amazon.comSony a7 III Full-Frame Mirrorless Interchangeable-Lens Camera Optical with 3-Inch LCD, Black (ILCE7M3/B)
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Available on Amazon.comSony Full Frame 24-105mm f/4 Standard-Zoom Camera Lens
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Available on Amazon.comZeiss Batis Lens 2/25 for Sony a7
Available on Amazon.comZeiss Batis 85mm f/1.8 Lens for Sony E Mount
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Available on Amazon.comZeiss Loxia 50mm f/2 Planar T* Lens for Sony E Mount
Available on Amazon.comSony FE 24-70mm f/2.8 GM Lens
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