Most good catalogues will have a number by the variety name 1 being the earliest and 6 being the latest. If you go for 3/4 you should be OK, but some firms only offer some varieties and others different ones . If you can get Golden Rapture , Glenshesk , Empress of Ireland, Easter Moon, Broomhill , Golden Aura, Carrickbeg , Misty Glen, would be a fair selection. If you Google the Daffodil Society I think they give a list of suppliers. I have not bought recently as I am growing from seed to try and get some new varieties. I have registered 4 Ann's White, Ann's Blush , Ann's Cream ,( my wife is called Ann ) and Molly Ann as we now have a grand daughter. You need to show at National shows to prove they are worth naming.