I have aphantasia and I found the drawabox approach especially appealing and quite similar to how I go about learning a new language, a musical instrument, grasping new math concepts etc. So, in a sense I wasn't at all surprised to find out that the creator of drawabox Uncomfortable (Irshad) has aphantasia, too.[0] For people who (have to) rely on a lot abstract thinking, I would highly recommend drawabox.

[0]https://m.youtube.com/watch?v=LWgXSxxEjgs