I'm looking for slow(-ish) 80's pop or R&B songs that have that specific bass sound. Examples of this you can hear in songs such as:
Paula Abdul - Rush Rush
Isley Brothers - In Between the Sheets (especially the part that starts at 3:25)
World Class Wrecking Cru - Turn Off the Lights
Basically, 80's ballads with a cool beat but this bass sound is kind of specific to that era, especially in combination with that glass synth that you can hear in the WCWC song.