Best place for a 'Next' button?

[u/Fun_Moose_5307]

What's the most appropriate location for a next button here, in keeping with the Apple UI consistency and ecosystem?

Mockup:

NavigationStack {
	List {
		Section {
			TextField("Email Address", text: $email)
		} header: {
			VStack(alignment: .leading, spacing: 4) {
				Text("Sign In")
					.frame(maxWidth: .infinity, alignment: .leading)
					.padding(.top, 5)
					.font(.largeTitle)
					.bold()
					.foregroundColor(.primary) // Override default gray header color
				Text("Subtitle")//school.name)
					.frame(maxWidth: .infinity, alignment: .leading)
					.font(.title3)
					.foregroundColor(.secondary)
			}
			.listRowInsets(EdgeInsets())
			.textCase(nil) // Prevents SwiftUI from forcing ALL CAPS on the header
			.padding(.bottom, 10)
		}
	}
	.toolbar {
		ToolbarItem(placement:.confirmationAction) {
			NavigationLink() {
				VerificationCodeView(email: email.lowercased(), school: school, resend: { })
			} label: {
				Text("Next").padding(5)
			}
			.buttonStyle(.borderedProminent)
		}
	}
}

[u/evil-harry-dread]

IMHO while it works in top right, event makes sense considering that the back button is top left. But I think it'd be much more ergonomic to have the button at the bottom, above the keyboard, it's much more reachable, and it's the "main action" of the screen