Really depends on what you’re into. I mean, I really want to recommend all the X-Men books and all, but most of that is because of my decades long attachment. 

Currently, outside of the X-Books, I’ve been really enjoying Runaways, Champions and West Coast Avengers. They tend to be less “Superhero-y” and more quirky ensemble cast stories. I’m reading Batwoman because it’s being co-wrote by a friend of mine from an old fanfic forum I used to be part of.

I will always suggest (and some of these are older and over sadly); 

Hellboy

Umbrella Academy

Doom Patrol (all generations)

Shazam! Monster Society of Evil by Jeff Smith (also, highly recommend Bone from Jeff as well, I was an Ohio State student when he was doing the original run)

Warren Ellis’ Planetary and NextWave

Jason Pearson’s Body Bags

I Kill Giants (this one is a graphic novel so it’s a one and done)

Rat Queens

Outside of that, I read a lot of manga and catching up on the classics out of Europe like Astrix, 2000AD and everything by Moebius.

One tip I have, if you have a digital device (like a phone or tablet), grab the Comixology app and read the freebies they offer to see what strikes your fancy, or if you can afford it, their Unlimited system, it’s around $6USD/month, and you can download and read everything that’s listed as Unlimited. Then find writers you like, I always suggest @1979semifinalist, @jamesthefourth, @mattfractionblog, Grant Morrison, Gerard Way (yes, the My Chemical Romance guy) and @warrenellis.