Another cool thing happening in the Amiga world is PiStorm - a Raspberry Pi based replacement for the CPU. And the resulting speed up in performance and RAM.
if speed is what you want why not just run winuae and emulate at >1000x the speed of 68000? Even pi4 runs winuae at >400mips. You know whats funny? Workbench still stutters while filling drawers one icon at a time.