Agreed I buy between Finish Ultimate whatever and the Fairy Platinum.
You often get good deals on amazon I got 100 Finish Ultimate for £12 or so recently. Lidl often have both at different times and Morrisons always have an offer on one too.
The Aldi own brand ones get good reviews from Which too. I tend to alternate when I have different brands at home my figuring is of they work in slightly different ways I’ll keep the machine cleaner by running one then the other, no idea if correct or not but it’s what I often do regardless maybe my ASD who knows lol