We did ‘veg led’ as in introducing the more bitter veg for the first few weeks before all the sweet stuff. I would offer it as finger food and a purée version but think I only did that for about 4 days before I couldn’t be bothered with purée anymore - would just mash if things needed it after that.
Worked great at the time DD took to it all really well and she’s still a pretty good eater as 4 year olds go, but still had her fussy phases and still has a very sweet tooth so not sure how much difference it made overall!
Aside from those first couple of weeks we mostly did just do what we were eating - including curry etc. Salt at the end.
As for finger food - we always offered it but if it was something that made sense to use a spoon I’d use spoons - give the child some pre loaded spoons to have a go themselves and occasionally spoon a bit in for them, but also just let them have at it with their firsts too.
Bibado bib, or just strip off to eat, old shower curtain under the high chair to catch bits. Mess wasn’t my favourite but actually quite manageable.
I always sat and ate with her, to model it and made lots of ‘mmm this is yummy’ type noises. A tip I read (I think it was on Solid Starts) if they’re really not interested is put a he food in your mouth (talking like a long carrot stick etc not a mouthful of yogurt obviously) and offer it them that way - they’re more likely to accept apparently. Bit gross but worth a try?
Also at 6 months youre not necessarily doing 3 meals a day, so the ‘eat what you eat’ doesn’t have to be dinner. I think we started with lunches as I was still on mat leave and had more time then. Then added in breakfast before we started with dinners. Plenty of things youre eating at those times would be fine for babies even if you’re thinking your dinners wouldn’t be - scrambled egg, toast with cream cheese or nut butter, yogurt, bit of hummus and pita, omelette fingers, veggie sticks (cucumber or steam some carrots), porridge, weetabix etc, make a really thick soup and stir in some couscous whilst it’s cooling to make it extra thick for them to have a go at scooping (once a bit more able) or dipping bread in.
Really recommend Charlotte Sterling Reed - on instagram and she has some good books and also a blog with lots of free info, look up SR Nutrition.