I would say a second hand Fusion is a great place to start. They can be picked up for around 120 EUR second hand on eBay. The second-hand market has slowed a bit due to the ongoing shutdowns, so might be worth waiting.
My only frustration with the Fusion is that you have to stitch (join front/back photos) on a computer, and it is a memory intensive process. More about that: DIY Google Street View (1/5): How I (Trek View) Started Capturing 360-Degree Tours | Trek View