I have some pokemon that might help you with the sinnoh dex.
Wormadam Alot of people have been saying that they have trouble finding a Wormadam. (Level 27)FEMALE
Machoke Just decided to trade some 50+ pokemon. (Level 53)
Camerupt Just decided to trade some 50+ pokemon. (Level 55)
Uxie A legend that I don't really want. (Level 50)
Dialga Trade something good for Titan <Nickname. (Level 82)
Infernape Offer good. (Level 71)
~~ADDING MORE SOON~~
Glaceon THe level of it is growing. (Level 33)