Classpass Referral link: classpass.com/refer/DE399TO729
I've been using classpass on and off and it's been great for me to sample classes from different fitness studios around town.
This is my referral link for up to 65 free credits, which is enough to book 5-6 classes, or more at the cheap end. Classes are usually around 10 credits each, but if you're lucky, I've seen cheap classes that are only 3 credits each, too.
What I like about classpass is that you can try out different things - as someone who thrives on variety, this helps me sample different sports and learn new things every week. It's nice when I am just shopping around for different places to go to.
I also like that I can bring my classpass subscription to other countries - it's a great option for me to make new friends elsewhere too when I have the time.
Customer service is also pretty responsive and has helped when I was sorting out subscription issues and letting credits roll over. And I like that I can donate unused credits when I need to.