Ahhhh, you like the classic stuff. Good for you, way too many people forget the 90's produced some of the best anime ever. If I might make a suggestion: Watch Martian Successor Nadesco. That is the funniest goddamned show in the universe. (It's got robots in it too, but it's super-self aware about how stupid and impractical it would be to spend money on robots, when you could just hire soldiers and build bombs.) The ancient enemy from the stars turns out to be a bunch of alien anime geeks descended from humanity who liked watching Voltron* (and thought that that was what everyone on earth was like.) They basically saw a video tape and thought it was the bible. Absolute classic. Do watch if you like comedy, the 90's, and parody shows.
*Not literally Voltron, but a generic super-serious 80's robot show. A show-within-the-show.
