I use a little white balsamic and some fresh lemon, and often only a half clove of garlic, and I add fresh dill.
I haven’t tried SK’s Tzatziki yet. Over the pandemic, I have been cooking a lot, and my 2 go-to resources for Greek recipes have become Akis Petrezikis and MyGreekDish.
These are 2 pretty amazing comprehensive threads on the topic of Greek food here on HO: