Evolution of my pokemon. Need help

I know it's a lot but I really need help... What is the best level to evolve or trade these Pokémon so as not to miss the opportunity for them to learn moves?: Seadra Scyther Onix Poliwhirl Slowpoke Porygon Golbat Chansey Togepi Vulpix Growlithe Pikachu Shellder Staryu Weepinbell Gloom Nidorina Nidorino Clefairy Jigglypuff Machoke Graveler Haunter Kadabra