If you want to get max power out of these boards, and plan on expanding in the future, I'd go with an hlg-240h-c1750b and an external pot for dimming, this will give you 135w max With 3 boards. If you add 1 board you get 180w. Add 2 you get 225w. This is all wired series.
If you don't plan on expanding, you could use an hlg-120h-24b with external pot for dimming, or hlg-120-24 with no dimming for approximately 120-125w. If you go with the hlg-120h-24a you can max all 3 boards at 135w, but you need a multimeter or digital dc voltage, amp display to make sure you don't go over the max of 1750mA per board. The a version of the driver is capable of 5.574a at max. Which would run each board at 1.858mA. That is not recommended. This one is wired parallel.
For driving 1,or 2 boards. The website has drivers recommended.
@Stephenj37826 could these boards be driven harder than 1.75mA if I used the 2.45" or 3" aluminum heatsink from heatsink usa.com? Or is that max current for the diodes period?