I think the thing is that what works for you will be something that doesn’t feel like a chore or being ‘deprived’ of something you really want. That will probably look different for different people, depending on personal preferences, palettes, circumstances etc.
For me, I tried a number of different things and managed to lose weight but slowly and I found it difficult to keep a steady weight or to ‘feel’ healthy/well. I did Weight Watchers and calorie counting, and lost weight and broadly kept it off, but felt like I was missing out on things like olive oil and avocados and nuts - not that I eat them daily! - but I felt like these things weren’t just tasty, they were nutritious and I was avoiding them because of the fat or calories. I tried Atkins type stuff a few times but couldn’t hack the high protein, within a week or two I would just rather not eat! So ultimately I didn’t want to keep living like that which would lead to gaining at least a little bit back as I ‘cheated’ with more fatty foods or quit the diet altogether.
What worked for me is low carb, high fat. I found the Diet Doctor website really informative for getting started and learning more about carbs and sugar. It works for me as I feel well and not deprived, eg I like lots of veggies, and fatty meats and fish, and cheese, cream etc, (and the aforementioned nuts and avocados!). But, I can happily live without bread, pasta, rice, sweet treats (like cake) etc. I still make desserts but they’re very low in sugar, eg just natural sweetness from berries for instance. This also suits my palette as I do like some sweet contrast sometimes but I don’t have a sweet tooth.
I’m not full on keto, I don’t feel the need to be that restrictive, and I tend to relax slightly on weekends (as I have more time to cook and enjoy longer mealtimes, so that’s when I’ll make desserts for instance). But on average I have something like 15% gross carbs daily (no idea what I’m netting but assuming somewhere between 10-15%). I don’t track it as a target, I just eat what feels right and have tracked through my Fitbit to see what the trend is and that’s how it works out. I’m eating around 55-65% fat (mainly in nutrient dense foods, like nuts, sometimes through some cheese or mayo for instance, I’m not stuffing myself with lard
) and somewhere around 20-25% protein, this works for me, as above I’ve never been a big protein eater.
I find this natural for me, very satisfying, and I’m both the slimmest I’ve been in over 10 years and healthiest I’ve felt pretty much ever. So it works for me, and I don’t feel like I have to plan the minutiae of my daily diet so it’s not a chore.