Q: what are some good chords for making a listener feel strange
A: different chords do different things in different situations. just like letters. For example, i can give you a situation where the letter "L" would make someone feel strange. Let's say you saw, in one of the many countries where 'STOP' signs exist, you see a stop sign that clearly says 'SLOP', and it's not a graffiti modification, it actually appears to be a real stop sign, placed in a legitimate place where a stop sign would be expected, and in every way it looks to be an authentic genuine stopsign manufactured by the official sign-making department. but it says "SLOP" instead of "STOP". Similarly, it would be equally strange if, when playing the song 'YMCA' in the key of F#, if, for the first chord of the chorus, a C chord was used