In high school I worked in a Fotomat booth in the parking lot of a grocery store. It was at the end of that era when people would still drop off film to get developed and pick it up a few days later. So, it was not busy at all and I was in the little booth by myself for my shift. I did my homework, read a lot of books, listened to music, and skateboarded around the booth. It was great.

As for your specific question, I would suggest any company involved in energy infrastructure or food production/agriculture. They are hiring across the board and you would probably have a strong impact. I would avoid any frontend development, social media, or AI. AI may hot right now but I predict the turnover will be very high and the companies unstable. If you are genuinely invested in a new career, pick an industry outside of the normal tech channels.