Based upon the type of projects you do what FPGA would you combine with your Ard

As I have not programmed extensively in assembler, and the project where I used it occurred a couple of decades ago, the words "registers" and "gates" appear as blank boxes in the mental imagery being formed as I read your words.

DSP blocks further exacerbate the loss of clarity in the image.

They certainly sound interesting and useful, however. I'll keep an eye out for examples of their use that are practical, understandable and provide rationale for their use.