Main.razor

<ContentPage>
    <StackLayout>
        @foreach (var option in Options)
        {
            <Frame CornerRadius="4" Padding="0">
                <StackLayout Orientation="StackOrientation.Horizontal" Padding="5"
                             BackgroundColor="(option.IsEnabled ? (option.IsSelected ? Color.DarkBlue : Color.White) : Color.DarkGray)"
                             IsEnabled="option.IsEnabled">
                    <Button Text="Select" OnClick="(() => OnSelectType(option))" />
                    <Label Text="✓"
                           TextColor="Color.White"
                           FontSize="12"
                           VerticalOptions="LayoutOptions.Center" HorizontalOptions="LayoutOptions.EndAndExpand"
                           IsVisible="option.IsSelected" />
                    <Label Text="@option.Value" VerticalOptions="LayoutOptions.Center" HorizontalOptions="LayoutOptions.EndAndExpand"
                           TextColor="(option.IsEnabled ? (option.IsSelected ? Color.White : Color.Black) : Color.LightGray)" />
                </StackLayout>
            </Frame>
        }
    </StackLayout>
</ContentPage>

@code
{
    protected override void OnInitialized()
    {
        base.OnInitialized();
        OnSelectType(Options.First());
    }

    public List<Option> Options { get; } = new List<Option>
    {
        new Option { Value = "Option 1-A", Category = "1", Variety = "A" },
        new Option { Value = "Option 1-B", Category = "1", Variety = "B" },
        new Option { Value = "Option 2-A", Category = "2", Variety = "A" },
        new Option { Value = "Option 2-B", Category = "2", Variety = "B" },
        new Option { Value = "Option 3-A", Category = "3", Variety = "A" },
        new Option { Value = "Option 3-B", Category = "3", Variety = "B" },
    };

    private void OnSelectType(Option option)
    {
        if (option is null) return;

        // reset all options
        Options.ForEach(o => { o.IsEnabled = false; o.IsSelected = false; });

        // enable options of the same variety (ie. A,B)
        Options.Where(o => o.Variety == option.Variety)
            .ForEach(o => { o.IsEnabled = true; });

        // enable options of the same category (ie. 1,2,3)
        Options.Where(o => o.Category == option.Category)
            .ForEach(o => { o.IsEnabled = true; });

        // select the current option
        option.IsSelected = true;
    }

    public class Option
    {
        public string Value { get; set; }
        public string Variety { get; set; }
        public string Category { get; set; }
        public bool IsEnabled { get; set; }
        public bool IsSelected { get; set; }
    }
}