NavigationLinkを使う

import SwiftUI
    
struct ContentView: View {
    var body: some View {
        NavigationView {
                NavigationLink(destination: TestView()) {
                    Text("Go Test View")
                }
            .navigationBarTitle("Top View")
        }
        Text("Hello, world!")
            .padding()
    }
}

struct TestView: View {
    var body: some View {
        Text("Test View")
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}