There are some really good weaning Instagram accounts - Wean in 15 (Joe Wicks), SR Nutrition, Annabel Karmel, What Mummy Makes with recipes and suggestions.
I brought a few basic bits - storage pots for freezing portions of things, spoons, bowls, bibs, etc. I didn't get anything fancy to prepare food, just made do with saucepans, colander (to steam), and a cheap handheld blender stick thing to blitz food up.
I started my DD at 6 months with pureed fruit first (pears, apples, etc) then moved onto to veg (potatoes, carrots, butternut squash, etc). We started with giving her some tastes of different purees at lunch time for a few weeks, before introducing breakfast (toast fingers, banana) and eventually an evening meal. I followed recipes from Annabel Karmel's weaning books which were straightforward. We did some finger foods (cheese, fruit, toast, savoury muffins) but my DD was never the biggest fan of feeding herself so purees worked best for us.
There are some good recipe suggestions on the NHS website too.