Weekly English play date for a 2 year-old born in US

We are French parents of a 2 year-old little american girl. We just came back from Boston and we are looking for a native english speaker who enjoy kids and would be interested in meeting our daughter 1-2 times a week for play time. She started to speak english when we left Boston and we want to maintain her exposure to the language. We are very flexible with hours and days. It is much more a question of language than babysitting. Sometimes we might even be around in the house when the meetings occur. So it would be playing with her and stimulate her expression skills., basically speding time with her.  We hope to find someone serious and ready to create a relationship with her. We want to avoid hiring someone new every month. Experience with kids is a plus.