mid tiers

ado does party, they have a mix of different girls but just because they are midtier doesn't mean they don't love to have a good time

do frats like them/party with them though

Every single sorority regardless of tier has at least one frat they consistently do stuff with. But you should be more concerned with liking the girls in the chapter than what boys they hang out with.

axo doesnt really party, and def. not with the upper frats. chiO and tri delt definitely do, though.

Honestly, you will find AGD is very much like DDD when you meet more girls and a lot of the members in both of those chapters hang out together. Both AGD and DDD also have a lot of friends in XO.
I personally think Fuzzy and AGD are more fun than AXO and XO. I like the girls in XO but don't think they are about split on how social they are. AXO still has a lot of random girls that I think would have fit better into DZ. Some are nice and cute but some are just weird.

Ok, I'm really sorry to say this, but stop worrying. The system works for a reason. All of the sororities have a group of people that party. Also, there is nothing wrong with getting into a bottom tier sorority. Plus, lately it has been the top and middle tiers who have been put on social probation, like tridelt by their nationals last year for having pregames. So stop. Those houses you just name dropped might not even invite you back. Don't count your chickens before they hatch

Chi O, DDD, and AGD are very similar chapter with pretty similar social calendars and similar friend groups.
AXiD and AXO have more similar social calendars, AXiD probably with a little more.