Best group Fitness Classes?

So I really need to lose weight and i like group fitness classes but I’m never consistent with them. I’m a grad student, so money and time are tight (as is motivation lol). I’ve been to pure barre before and it was ok, just a little too fast paced for me. I’ve tried ignite cycle and loved it, it’s just odd times and kind of expensive. I’ve also tried F45 and liked it, again just really expensive (and the current studio is closed??) Anyone have some recommendations for a group fitness class/place that they really love and isn’t crazy expensive? lol I live in Vestavia hills but am also always in downtown, so location is flexible