Below are links to rubrics aligned to and adapted from the Achieve rubrics that you can use that will help you evaluate OER.
Pasadena City College
OER: Open Educational Resources
Santa Ana College
Orange Coast College
Open Educational Resources (OER): A Guide for Faculty: OER overview
College of the Canyons
(OER) Open Educational Resources for Faculty and Other Instructors
"Community of Practice for OER Degrees" Presentation (January 31, 2017)