public function index()
{
    $user = Auth::user();

    // $user = User::find(1);
    $applicants = $user->applicants->where('visible', 1);

    foreach ($applicants as $applicant) {
        $applicant->bloodGroup;
        $applicant->fiqa;
        $applicant->gender;
    }
    // return response()->json($applicants);
    return view('applicants.index', ['applicants' => $applicants]);
}

{
"1": {
"id": 4,
"blood_group_id": 1,
"created_at": "2019-04-22 13:24:16",
"updated_at": "2019-04-26 10:21:41",
"blood_group": {
"id": 1,
"name": "A+",
"visible": 1,
"created_at": "2019-04-22 08:21:19",
"updated_at": "2019-04-22 08:21:19"
}
}
}

<div class="row mx-4">
   <div class="col-06 pr-3">
      <p class="h5">Name:</p>
   </div>
   <div class="col-06">
      <p><?php echo e($applicant->blood_group->name); ?></p>
   </div>
</div>