is there anything better than KOH(Potassium Hydroxide) for electrolysis water

[Aminlv]

hey guys
i just started to play with HHO for fun ATM
i tested with same temperature same PSU & same steel with 4 different types of electrolysis compound

0. Just Tap Water
1. Table Salt
2. regular NAOH "commonly use for unplugs the pipes"
3. KOH industrial grade "potassium Hydroxide"

result of my test as probably thousands before me tested was

A. KOH hands down its best

B. NAOH was also not bad so if u need cheap one and have no access to KOH its not bad solution

C. Table Salt is good but its NONO the Chlorine almost got me instantly! just avoid it people like a plague! not just for hazardous Chlorine but its very powerful acidic element it chew your equipment's like hungry monster!

D. Tap water well it still bubbling but its so measly compare to the rest

so my question is


Is there anything better than KOH?
I saw something called HH+ but idk what the heck is that!

so i appreciate from HHO veterans if u can help me with my curiosity out

tnX