I learnt m68k on an Amiga 500+ in a week, it's a decent assembly language which a lot of CPU manufacturers could learn a lot from.
Re: Exploring the Amiga – Part 1 (2018)
#21It was a very clean ISA at the time, which made it quite easy to learn. Though if you want to learn a modern ISA today you'd pick RISC-V which is almost as simple.