Interesting question, I also just get into this field although I have learnt some simple dsp back in my bachelor degree, so I don’t have an answer for that sadly.
My current approach is a bit manual by putting some planning before implementation, considering what kind of access pattern are more likely be used in run time, and I have tried to avoid any dynamic allocation in the audio thread. Thus, currently, I just got inspired to the book about Data-Orientated Design and Andrew Kelley’s video to carefully analyze how struct are allocated into the heap:
I am also interested if there are tools for that or this has to be done by intuition.