do you want a list of spell categories that would work? listing every spell known to work would take a very long time. plus, even if we did provide a complete list of working spells, we would have to point out it is no guarantee the spell in question would work for you. casting a love spell when you're already in love is pointless for example, the spell might not work at all, or cause some serious relationship problems to teach you a lesson. casting five different money spells in a row is also a bad idea because you need to wait for the first spell to take effect. magick takes time, so don't assume the spell failed because you didn't get a knock on your door from someone holding a big check. casting multiple spells in a short period could leave you drained of energy, and it could also cause the spells to backfire. also, even if you simply cast one working spell, if you don't cast it properly [didn't concentrate, didn't visualize, didn't use any energy, didn't believe the spell would work, miss steps] the spell would also not work for you.
spell categories that people believe work are love, luck, wealth, health, job, protection, curses, banishing, cleansing, friendship, and a bunch of subcategories that could fall into those listed.
spells that do not work include most spells in this sites fantasy or trick section such as transformation, levetation, teleportation, invisibility, growing limbs humans are not born with [wings, tails, animal ears] or regrowing limbs [basically any instant or dramatic physical change] conjuring elements at will [creating a fireball, 'bending' a la Avatar The Last Airbender] bringing someone back from the dead, time travel, and becoming any mythological creature. basically if it goes against nature or claims the impossible, it probably does not work.
grey areas in magick are weather, death, and certain beauty spells. if a beauty spell boasts you cast and wake up looking like Sandra Bullock or whatever, it doesn't work. if the beauty spell gives you a face wash and a chant to say daily to clear your acne, then it will probably work. no beauty spell works without effort from the caster. weather spells are up for debate, some feel you're working with forces and nature therefore it works, others feel it's too much power for a human to posses. same goes with death spells, while some view them as powerful curses, others see them as too godlike and therefore do not work. i don't recommend attempting to cast one as an experiment on the off chance they do work, but study and draw your own conclusion.