Comparisons to a Timbaland type auteur are impossible because Timbaland is actually not an R&B auteur. Tim most certainly understands how music works but so much of his ideas are amusical unlike say The Neptunes. Timbaland's most likely modern inheritors are your Mustards and your Mike Wills, but neither function in the same way b/c the climate and the reference points that inform them are too different.
Would you mind on expanding on what you mean by amusical here?
Ty Dolla Sign.
Jeremih is not even important in today's R&B landscape that's pitchforkian mythos.