• ...If I rock the bike back and forth while leaning on the bars over the front wheel I can definitely hear it and it does sound like the wheel...
    Rule out possible sources of the problem from the largest, to the smallest.

    Assuming you did the above whilst unseated, you've ruled out the back end: saddle, seatpost, cranks, bottom bracket etc etc.

    If you swap-out the front wheel, then you can further narrow it down to either the front wheel assembly, or the headset, bars and stem.

    After the front wheel, the cockpit is the easiest to eliminate; disassemble, clean, grease/assembly paste, reassemble using a torque wrench.

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