Which RPA tool should I learn being a C# Developer ?

I am a .NET developer who primarily developed web and stand alone apps using C# since beginning of my career. I am now interested to learn RPA so which RPA tool is best for me to learn where I can use my .NET skills more.

I came to know from Google that we can use C# in code stage of Blue Prism but nothing much about other famous tools like AA, UIPath, OpenSpan etc.

I understand that its best to select RPA tool based on requirements but I'm not looking that far as I haven't got a chance to work on a RPA project yet. I'm only looking from a .NET perspective. Thanks!

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