Where should I report Miscellaneous income of $679 from RBC Capital Markets, LLC. Income is from JP MORGAN CHASE & CO ALERAIN MLP INDEX ETN BASED ON WAP LEVEL OF INDEX.

It was reported in box 3 1099 misc. when I enter that in turbo tax it wants me to report it as a sole proprietorship which it is not.

Level 8

The determination of where the income is reported is based on the answers to the questions after you enter your Form 1099-MISC income.

Once you enter the Form 1099-MISC, you will be asked to enter a description of the type of income or the reason you received the form.
The next screen asks if one of the situations apply to your income.
Did the income involve work like your main job? Most likely the answer to that is no.
How often do/did you receive the income? Was 2017 the only year you received the money?
And the most crucial question - did the income involve an intent to "earn" money. That would be answered No - unless that's part of your job.

If your answers indicate that this was not "earned" income, the income will be reported on Line 21 of your Form 1040.