I have a lot to say about this!

Lulu is obviously great but it's so expensive I end up not wanting to sweat in it, so it becomes my "fancy athleisure" not my actual gym or running clothes.

CRZ Yoga is decent but I actually find this brand Lavento more flattering (At least the shorts). No front seam is great (I have these, they also have longer shorts). I'm not sure that these or CRZ would have the right compression for running though. I wear these to the gym and also just out to the store or whatever.

Womensbest is decently flattering and the colors are fun and bright. They're my favorite leggings to run in currently - perfect amount of compression for me, and they deal with sweat well. Also the matching long sleeve tops make you look snatched. They're affordable too (literally always having a crazy sale) BUT they do take forever to deliver if you're in the states. And I think the logo looks a little stupid.

NVGTN is sort of annoying because it's like a cult internet brand that sells out instantly, and sometimes I get embarrassed wearing the leggings because they're just so explicitly meant to show off your ass. That being said... they do make your ass look incredible. They're VERY compressive though, I feel like I might struggle to breathe in them running. I actually really love the tops too, they're probably the most flattering work out tops I own (usually lift the girls well and show off the back muscles).

I also REALLY love the stuff I've gotten from this UK company called BO+Tee. I have the shorts and leggings from this collection and they make the ass look incredible and I love the colors. Pretty good deal I think too. They're almost too cute to wear for running though, I usually save these sets for the gym.