DS goes to Flanagans Preschool on Butler Pike. We LOVE it. DS has so much fun at school. It's a little on the pricey side, but we think it's well worth it. Their facility is so nice. DS has been there since he was 3 months old and we've always had good experiences there.
I would also recommend Flanagan's on Butler Pike. We toured a few places and that was definitely the best one, but we ended up going with a daycare closer to our house (we live in Phoenixville, but I work in Conshy). KinderCare off of Rt. 23 was also decent (I think it has a KoP address but is only a minute from Conshy), but Flanagan's was definitely nicer.
Re: daycare suggestions near Conshohocken?
Pick one with a high keystone star rating
https://www.padaycare.com/links.php