✅ Using IProgress with await Task.WhenAll(tasks);

    
public class Scraper
{
    
    private SemaphoreSlim semaphoreSlim = 7;
    public void Scraper(int concurrentThreads)
    {
        semaphoreSlim = new SemaphoreSlim(concurrentThreads);
        ServicePointManager.FindServicePoint(new Uri(baseUrl)).ConnectionLimit = concurrentThreads;
    }

    public async Task<List<ApiGetStringOutcome>> GetStringsFromUrlList(List<string> apiUrls)
    {
        List<Task<ApiGetStringOutcome>> tasks = new List<Task<ApiGetStringOutcome>>();

        foreach (string apiUrl in apiUrls)
        {
            tasks.Add(GetStringDataAsync(apiUrl));
        }

        await Task.WhenAll(tasks);

        return new List<ApiGetStringOutcome>(tasks.Select(t => t.Result));
    }

    private async Task<ApiGetStringOutcome> GetStringDataAsync(string apiUrl, ApiGameSearchParameters gameSearchParameters = null)
    {
        await semaphoreSlim.WaitAsync(); // Wait until semaphore is available

        try
        {
            HttpResponseMessage response = await httpClient.GetAsync(apiUrl);
        }
        catch (Exception ex)
        {
            // Stuff here
        }
        finally
        {
            semaphoreSlim.Release();
        }
    }
}

public class MainApp
{
    public void Start()
    {        
        // blah...
        getStringOutcomes = await Task.Run(() => apiDataService.GetStringsFromUrlList(urlList));
    }
    
}