Hi Ansett, for similar reasons to you I have been looking at alcohol free options. I've recently tried, experimented with and compared some of the Lyres range, Altd Spirits and Brunswick Aces. Of these, for a "gin and tonic" style drink, I found the Brunswick Aces most palatable. When mixed with a good tonic and using a recipe as per their recommendations, it makes an "adult" (i.e. not all sugar and fruit) drink that has some mouthfeel and complexity (my preferences was the "Hearts" rather than the "Spades"). I found the other brands a bit overly green and perhaps even chemical in their aftertaste, with little mouthfeel unless using a very sweet tonic. I didn't mind the Lyres American Mall with ginger ale as per their recipe either. It does capture some of the smoky/woody/grain flavours quite well.
Of course, taste is a very personal thing and YMMV but hope this helps.
I used Capi and Fevertree mixers.