At 6 months, I'd just go for with mushed foods, no need to puree! We started off 3 meals a day, usually spoonfeeding gluten-free porridge for breakfast, and then just fruit and veg for lunch and dinner - we didn't buy any baby specific foods, apart from a few finger food snacks, LO just ate what we were eating). When they start off they're just getting a taste for things so they can try new things throughout the day, but I'd slowly introduce anything triggering possible allergies like bread/pasta/egg etc, maybe give these once a day and watch for any reaction.
The practise of BLW isn't a new craze, only the use of the phrase! If your baby wants to grab everything and put them in their mouth it may as well be a steamed veg stick! lol! We did BLW (just spoonfeeding cereal, yoghurts etc) and have an amazing eater at 18 months old and will definitely do it again (reading the book expelled all my fears)!
Just give things a go, and work with how your baby reacts. Some babies love being spoonfed, for others it's a battle!
Either way, weaning is loads of fun! enjoy experimenting with new foods!