you can always set up a forum selling eggs :)
i personally love the rancher class, i just love the pets and having a higher chance of hatching a color is excellent (although i never hatch nice colors anymore) but i agree that there not as much tu in in as there is for merchants.
dyed pets are generally hard to sell and i think that pets that kir usually asks for are easiest (as well as seasonal/rare/cs pets)
its always hard to start of but once you start getting tu things get alot easier :)
hope that helped and sorry if i didn't :p