ngTemplateOutlet with dynamic value

Add these to the components class

@ViewChild('one') one:TemplateRef<any>;
@ViewChild('two') two:TemplateRef<any>;

and get the template references using

<form no-validate (ngSubmit)="onSubmit(search)">
    <ng-container *ngFor="let part of objectKeys(config);">
        <ng-container *ngIf="config[part]">
            <ng-container [ngTemplateOutlet]="this[part]"></ng-container>
        </ng-container>
    </ng-container>
</form>

StackBlitz example