How to adjust spacing between HStack elements in SwiftUI?

Add a spacing attribute to the HStack itself. For a spacing of e.g. 10:

HStack {
    Image("Rhea").resizable().cornerRadius(25).frame(width: 50.0, height: 50.0)
    VStack(alignment: .leading) {
        Text("How to enjoy your life without money").bold().font(.system(size: 20))
        HStack(spacing: 10) {
            Text("Lets create")
            Text("3K views")
            Text("3 hours ago")
        }
    }
}