Non clicky silent fire button mods?

In my quest to find one of these the closest i came was the hellvape arez 120, fire button is silent but half the time it doesnt fire or just cuts in and out (even on the new batch) or just turns off the device (old batch), i would prefer a single 21700 mod, the dna ones all seem to be clicky so stealth vaping is not an option, anyone have any suggestions, im slowly losing my mind here.