BB King, Marvin Gaye, Earth, Wind and Fire, Brothers Johnson, George Clinton (and anything else under the p-funk banner like sly, fred wesley, p-funk all stars etc), James Brown, Temptations, Gladys Knight, Four Tops, The Gap Band, Smokey Robinson, Confunkshun, Stevie Wonder, Rick James etc. All of these are Funk, R&B and Soul.
Listen to Jimmy Jam & Terry Lewis. In fact, listen to the majority of acts out of Minneapolis (The Time, Prince etc.) Listen to the Jackson 5 (when mike was a little kid) and listen to Teddy Riley.
If you can't draw something from the list above I don't know what to tell you because everyone listed has gold and platinum credits. Most of all study the arrangement of the songs. These people rarely had the same damn loop playing over and over through out the song. You had chord progressions, breakdowns, bridges and even changeups during the last 4 or 2 bars of the main verses. The sounds used haven't changed much. Synths, strings, clavs, guitars, bass, percussion, pads, keyboards (pianos both acoustic and electric, organs, keyboards) brass, wind inststruments etc. The same sounds they are using you can use, yeah its going to sound different depending on what you play and how you play it, but thats the beauty of it.
Also, if you have the chance pick up a chord book with emphasis on Blues Chords. Different styles of music generally use different progressions and chords (like jazz for example) so go ahead and pick up some books too.
Be cool.