Jasper is 4 months old(5 months on the 6th) and I dont think we have one

The only dogs I know of that will play with him are my cousin's two pitbulls....

Im not babysitting anymore, and I just dont want my parents to have to pay $160 JUST to socialize him, plus his neutering fee on feb.18th, until I can pay them back, but Im not sure what else to do....he needs to be socialized