Check if a object is serializable or can throw Serialization not supported Exception in .Net Core

I am trying to migrate WPF application to .NET core . In my project serialization is used heavily. Below function work well on .NET 4.7 framework but after migrating to .NET core 3.1 gives error ' Serializing delegates is not supported on this platform' .

public static T Clone<T>(T source)
    {
        if (ReferenceEquals(source, null))
            return default(T);

        IFormatter formatter = new BinaryFormatter();
        Stream stream = new MemoryStream();
        using (stream)
        {
            // test 
            formatter.Serialize(stream, source);
            stream.Seek(0, SeekOrigin.Begin);
            return (T) formatter.Deserialize(stream);
        }
    }

I have changed serializable classes where ever => operator used or any property used delegates. After doing this part of code worked but some of module in project still throwing error - Serializing delegates is not supported on this platform.

Is there anyway to find which particular object or property is throwing this exception?

any hint or help appreciated. thanks.