Need a DS Emulator

So I'm trying to do a Randomizer Nuzlocke of HeartGold on an Emulator

I don't feel like restarting my own HG on my DS because even though 200 hours played isn't a lot, still proud of what I've done in those 200 hours

I've tried a bunch of Emulators but they all seem to crash after a little while

NO$GBA: After getting past the black screen after talking to Oak, saving the game becomes impossible

DeSmuME: At random moments, it would just freeze, or glitch, sometimes making it impossible to save

NDSemu (NO$Zoomer): Worked for a while, but eventually crashed too

Need an Emulator that wont crash and leave me frustrated for having to restart a Randomizer Nuzlocke for the 5th time

Thanks