Fitness Classes (postpartum)

Can anyone recommend any fitness classes please? Preferably Wallsend/ North Shields/ Whitley Bay. I'm new to the area and my baby is 4 months old. Wanting to join a night time class to get some exercise and maybe meet some new people. Just don't want to join a gym as I can't guarantee I'll be able to stick to it. Thanks! 🫶🏼💓