Mvh,
For me I think kindermusik, gug & gymboree quite nice and gug, for those gym type Bb can js train at home, it helps to train up the mobile skills but still trainers like all not very expert in making Bb concentrate, also all these actually make the accompanied parent very tiring, sometimes need to carry them up and down like kindermusik, oh just rem, cannot imagine how sunflower gg to cope if she's carrying her sumo boy... To add on, training up mobile skills can save $$ and do it at home or rent a playgym for them but still now u'll be afraid they might fall so back to square one, tire the parents only, keep following them..