In addition to what Dad posted, here are some albums I think are similar to the Alan Parsons Project’s I Robot.
1. Jean Michel Jarre, Oxygene. Oxygene, released in 1976, is more electronic and less rock than I Robot, and it’s not exactly a concept album, but it has a similar sound and sensibility.
2. and 3. Pink Floyd, Animals and The Wall. Pretty much any Pink Floyd album from the 1970s is as close to Alan Parsons as you can get. In fact, Alan Parsons was an engineer for Dark Side of the Moon, so he probably influenced the sound for that album and was influenced by Pink Floyd’s sound. Like I Robot, both Animals and The Wall were concept albums and were also sort of funky.
4. The Who, Tommy. Tommy‘s sound is different than I Robot‘s because it was made in the late 1960s, but both are concept albums about an anguished protagonist and both have lots of good songs.
5. The Talking Heads, More Songs About Buildings and Food. This isn’t a concept album, but it reminds me of I Robot because it, also, seems to be a mix of new wave, electronic, classic rock, funk and disco. Actually, pretty much anything by the Talking Heads in the late 70s would qualify.