Babysitter Needed For A Brilliant 9-Year-Old Boy

I'm looking for a great babysitter for my son. He loves chess, playing Legos, reading and videos He craves stability/routine so I'm looking for one or two sitters who can build a relationship with him and who he looks forward to seeing, that I can use as needed. The majority of the needs will be evenings for my social engagements but there will also be weekday work dinners or other possible weekday needs (e. g. conflicts with teacher workdays and my work schedule). I'm a single dad with a demanding job and would also be interested in summer availability depending on what camps I end up enrolling him in. I'm biased obviously, but he's a really special kid and I hope we can welcome someone equally special into our lives as a caregiver!