How do I start solid. What do I need to buy before starting solid? Pls recommend Brand’s and price of the items as well. Thanks

I think he above recommendations are pretty good. For myself I started giving store bought purée as I was not confident of making my own food and gave Hipp brand broccoli - they have some that are suitable for 4 months up. I then gave real food - fruits and veg. Like suggested, banana, avocado - mash it can give le. The veg usually are harder and drier so u need to cut & steam till soft then blender it. Use a handheld blender - many brands out there. Otherwise u can consider baby led weaning too. Just prepare food into small but chunky size that baby can handle and let baby bite/gnaw himself