If you only need 5k€/month before taxes and willing to work full time or a bit more for it, what business would you start?

I will be unemployed after 2 months. I want to take some time off but after that I'd love to start my own business. I'm really done with corporate life, politics and coworkers and I've always wanted to be an entrepreneur and not an employee even if it means that I will work harder and be paid less, just for the sake of owning what I do and preferably do it solo.

I live somewhere in western Europe, expensive country but fairly cheap area, 5k before taxes would leave me ~2.5k after taxes which's enough for me. Savings are enough for 2 to 2.5 years. I have background in tech and insurance

What business would you try to start in this situation?