Re:OpenBSD: arm64 platform now officially supported, and has...
by squarefoot on Tuesday December 12, 2017 @09:20AM
(#15905686)
Armbian and DietPI pages, although Linux oriented, contain a fairly long list of hackable boards, so you can look there for boards using supported platforms.
https://www.armbian.com/download/
http://dietpi.com/