What would better litter be? I’ve tried about every brand I’ve seen in the past 5 years and the ones that have worked best are just regular brand. Maybe faster clumping is helpful (currently using Tidy Cats Instant Action), but I’ve never seen a noticeable improvement on smell.
I’m Brazilian, so I can’t really help you with brand names or even availability.
But mine is made out of lemon grass, corn and cassava. It smells like lemon grass, urine forms almost perfect spheres, and you can clean it super easily. Nice bonus: you can flush it without issues, and if your cat eats for some reason, it’s actually helpful fiber.
Avoid silica based ones like the plague.
There are quite a few. To begin with, the manufacturing process can be harmful to the workers, and for the same reason, it can actually worsen some cat’s respiratory issues. The silica also likes to flake into sharper and smaller points when exposed to liquid, which often can cause bruises or skin irritation on paws, mouth or even eyes. Plus, it actually does start to smell quite fast compared to several other kinds of litter (though it’s usually better than the wood based ones, if they’re not properly designed they smell horrible).