how to add a basic share button android

hello, I wish to add a simple android share button, that when pressed offers you a list of apps that you can share to. NOT JUST facebook/twitter/etc but just the list of apps that are on the phone that can be shared to.
as shown below:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.IO;
using System.Runtime.InteropServices;

public class socioshare : MonoBehaviour
string subject = "add any text here ";
string body = "share your game link here";

public void OnAndroidTextSharingClick()

IEnumerator ShareAndroidText()
    yield return new WaitForEndOfFrame();
    //execute the below lines if being run on a Android device
    //Reference of AndroidJavaClass class for intent
    AndroidJavaClass intentClass = new AndroidJavaClass("android.content.Intent");
    //Reference of AndroidJavaObject class for intent
    AndroidJavaObject intentObject = new AndroidJavaObject("android.content.Intent");
    //call setAction method of the Intent object created
    intentObject.Call<AndroidJavaObject>("setAction", intentClass.GetStatic<string>("ACTION_SEND"));
    //set the type of sharing that is happening
    intentObject.Call<AndroidJavaObject>("setType", "text/plain");
    //add data to be passed to the other activity i.e., the data to be sent
    intentObject.Call<AndroidJavaObject>("putExtra", intentClass.GetStatic<string>("EXTRA_SUBJECT"), subject);
    intentObject.Call<AndroidJavaObject>("putExtra", intentClass.GetStatic<string>("EXTRA_TITLE"), "TITLE");
    intentObject.Call<AndroidJavaObject>("putExtra", intentClass.GetStatic<string>("EXTRA_TEXT"), subject);
    intentObject.Call<AndroidJavaObject>("putExtra", intentClass.GetStatic<string>("EXTRA_TEXT"), body);
    //get the current activity
    AndroidJavaClass unity = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
    AndroidJavaObject currentActivity = unity.GetStatic<AndroidJavaObject>("currentActivity");
    //start the activity by sending the intent data
    AndroidJavaObject jChooser = intentClass.CallStatic<AndroidJavaObject>("createChooser", intentObject, "Share Via");

I am using this script to share the game link to all the social media apps. but the problem I am facing is that I am unable to print the 1st string “subject” in the message to be shared.
2nd string "body is being printed accurately.
Rest everything works fine