Retro gaming on Microsoft Surface (arm64)

Hello, long time lurker, first time poster.

I have a new Microsoft Surface, no mouse or keyboard or controller as I'm usually on a train. Can anyone recommend any games that would work well? I have steam / gog and I can emulate. I'm particularly interested in games that slipped past me when I was young as well as classics like Monkey Island. I'm mostly thinking point and clicks however, I enjoy a range. I look forward to hearing you suggestions and I wish all of you a great day.