Tenancy Model Scoping Best Practices

Schema::create('invitations', function (Blueprint $table) {
            $table->foreignIdFor(Organization::class)
                ->constrained()
                ->cascadeOnDelete();

            $table->string('email')->index();
 
            $table->foreignId('invited_by_id')
                ->constrained('users')
                ->cascadeOnDelete();

...
        });

class Invitation extends Model
{
    public function organization(): BelongsTo
    {
        return $this->belongsTo(Organization::class);
    }

    public function inviter()
    {
        return $this->belongsTo(User::class, 'invited_by_id');
    }