We recommend staying on Aquidneck Island (Newport, Middletown, or Portsmouth). There are ubers and lyfts readily available but can be difficult to reserve if staying further away & require crossing over the local bridges.
We have found that booking homes Rentals tends to have better pricing options than hotels in Newport and Middletown. Below are some options of where to book those rentals:
Airbnb
VRBO
(This outlines a comprehensive list of hotels, historic Inns, home rentals, etc)
Hotels in Downtown Newport:
Newport Harbor Hotel and Marina
Hotels in around Newport and Middletown (5-10 min drive to the venue & Downtown Newport):
Hampton Inn & Suites Newport/Middletown
Residence Inn Newport Middletown
The Newport Navy Lodge (for our Military friends)
Hotels off of Aquidneck Island (within 30 min drive to Downtown Newport):