What kind of policy is minimum wage? Does it fall under fiscal, monetary, or supply-side, or perhaps some other group? Also (seeing as minimum wage is a form of price control policy), where does the broader "price control policy" fall?
Looking up each of those terms you ask about would have given you your answer.

Fiscal policy is economic policy enacted through government. The minimum wage is a type of fiscal policy.

Monetary policy is economic policy enacted through central banking. The minimum wage is NOT a type of monetary policy.

Supply-side is a macroeconomic theory that growth is best achieved through capital investment and lowering barriers to production. Usually the policy suggestions to come out of this are to remove government regulation and lower marginal tax rates. The minimum wage is a type of regulation, so minimum wage would not fall under the doctrine of classical supply side economics.

I don't understand what you mean when you ask where "price control policy" falls under. There's no real categorization for it besides also being a type of fiscal policy.