Plugin for classes

Hi, looking for a really good plugin to book classes.

It’s a simple school term class for kids ballet.

Need to be able to limit the amount of seats, allow people to book and add information such as students name, age, et.

Payment would be a bonus but not idea.

Integration with mailchimp would be idea but not necessary. Email alert system would be handy.

Ideal if people who are currently en-rolled in term 3 get first pic to re-enroll for term 4. Once they have had a chance (by cut off date) it opens to the public to book.

Any suggestions on a really good plugin?

I used ‘Bookly’ before for a photoshoot and it went well, but thinking it might be limited for what I need.

Thanks!