Tetris block kinematic rigidbodies pass through one another with Transform.Translate

I am trying to build a Tetris 3D game in Unity but I am stuck at getting the different blocks to interact (to detect each other, to sit one on top of the other rather than going through each other). I have set the ground with a box collider and the spwaned blocks come in with rigidbodies and trigger colliders.

This works for them to nicely settle on the ground but when I try to sit a block on top of another block they both have kinematic rigidbodies and the collision detection doesn’t work and they end up overlapping. The problem is if I remove the rigidbody of the already settled block then it will go through the ground.

Any idea how to get 2 spawned objects to detect each other?

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UIElements;

public class moveBlock : MonoBehaviour
{    
    public static float speed = 2;
    public GameObject[] blocks;
    public static List<GameObject> blocksSpawned = new List<GameObject>();
    public static List<Rigidbody> blocksRBSpawned = new List<Rigidbody>();
    public static bool triggerPlatform = true;
    Rigidbody rb;

    void Update()
    {
        Vector3 input = new Vector3(Input.GetAxisRaw("Horizontal"), 0, Input.GetAxisRaw("Vertical"));
        Vector3 direction = input.normalized;
        Vector3 velocity = direction * speed;
        Vector3 moveAmount = velocity * Time.deltaTime;

        if (triggerPlatform)
        {
            blocksSpawned.Add((GameObject)Instantiate(blocks[Random.Range(0, 7)], new Vector3(0, 6, 0), Quaternion.Euler(Vector3.right)));
            rb = blocksSpawned[blocksSpawned.Count - 1].GetComponent<Rigidbody>();
            blocksRBSpawned.Add(rb);
            triggerPlatform = false;
        }
        /*if (!triggerPlatform)
        {
            Destroy(blocksRBSpawned[blocksRBSpawned.Count - 1]);
        }*/
        if (blocksSpawned[blocksSpawned.Count - 1] != null)
        {
            blocksSpawned[blocksSpawned.Count - 1].transform.Translate(Vector3.down * Time.deltaTime*speed, Space.World);
            blocksSpawned[blocksSpawned.Count - 1].transform.Translate(moveAmount);
        }
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class trigger : MonoBehaviour
{    
    private void OnTriggerEnter(Collider other)
    {
        moveBlock.triggerPlatform = true;
    }
}