Foxtrot, Selling England, Abacab.
The first two are what got me into Genesis, I absolutely adore the pastoral British sound mixed with some hard rocking and surrealism. But after recently giving Genesis's 80's output a listen, I became enthralled with Abacab and how it threw away with the "rules" of Genesis songs, the group even admitting such.
The theme of abstraction is perfectly conveyed through the nonsensical lyrics and jamming nature of some tracks. This aspect of it gives the album a timeless nature, with each new listen granting a new perspective.
Another one who likes Abacab
Welcome to out forum!