The GearBest HGF419 coupon is back for the HGLRC F4 V5Pro ($35.99).
Now that I got mine delivered, I can confirm the dRonin Revolution target loads and configures just fine on this FC.
The GearBest house branded FuriBee F4 V5 PRO Flight Controller looks to be an identical clone of the HGLRC and sells fro $39 with no coupon.
I can also confirm the Skyzone F4 Flight Controller can flash and configure the dRonin Revolution target. This FC is single sided and flat bottomed, albeit slightly larger footprint than a 36mm square. Well suited for X frames without any standoffs near the FC stack.
There's also the HGLRC XJB F428-TX20-ELF F4 Flight Control System where at least one component of the stack is essentially free after discount. Though I cannot yet personally confirm that it loads dRonin, I've got a hunch it'll do just as well as the other HGLRC FCs I've tried i.e. the FLAME and the F4 V5 PRO.