Here's a short video explaining and demonstrating a couple of my best-known alternate tunings, PowerDraw and PowerBender:
https://youtu.be/hoznOBsTyEc
I'm using a couple of my own-brand harps here. These are decent models made by Easttop and Kongsheng; modestly priced to enable players curious to try these tunings to do so without a big financial outlay.
PowerDraw and PowerBender are also available in Seydel versions. They're more expensive, but have the advantage that they can be fitted with Jim Antaki's TurboSlide to get more bends.
All ordering links are in the description below the video.