If you are looking for fishing rods in Pokemon Revolution Online then here are the places where you can find them:
Visit Fisherman Guru Earl’s house in Vermilion City near the Eevee evolution house. Talk to him and get the old rod
Purchase it for 15,000 in Fuchsia City. Look for the house located east of pokemon center, and buy it from the Fishing Guru therein.
Purchase it for 75,000 in Olivine City. Look for the house near the lighthouse.