I used David Siler's program to prepare for my SPHR certification and would highly recommend his program. He offers both self-study materials and also an instructor led course. You can find information here: https://www.phrexamprep.com
I also used Victoria Purser's program below to supplement my learning a few weeks before I took the exam.
CRAM FOR THE EXAM BOOT CAMP - PHR/SPHR/SRHM-CP/SHRM-SCP 7-hours Review
Intensive PHR, SPHR, SHRM-CP/SHRM-SCP exam prep review delivered via live webcast for real-time interaction with SMEs or the recorded version of the most recent boot camp is available. $199. Details and how to register to attend a live class or obtain the recorded version of the most recent boot camp and its learning resources can be found here:
Happy to connect if you have questions. Both David and Victoria have Facebook pages as well.
Hey Margaret! We offer an online on-demand learning course for PHR prep. We have 10+ of content, practice tests, and an online community. You can read all the details on our website http://acethehrexampro.com/ or shoot me an email with any additional questions I can answer for you help@workology.
Good luck on your certification journey!