What is the best way to pass ngModel to a lot of controls output by a loop?

Question

Angular

I am learning Angular, please tell me:
I have a list of banks output by a loop

<div *ngFor="let item of banks; let i = index" class="col-md-6">           
        <mat-form-field>
            <mat-select placeholder="Статус по бакну {{item.name}}">
                <mat-option *ngFor="let item of bankStatuses" [value]="item.id">
                    {{ item.name }}
                </mat-option>
            </mat-select>
        </mat-form-field>
    </div>

Each bank must be assigned a status.
What is the best way to set [(ngModel)] for mat-select (status dropdown)?
Create an array, and make the bank ID an index? Or are there any good practices?