Good new anime?

If you liked One Punch Man, then you'll love Boku no Hero Academia. It's currently airing and it's pretty similar to One Punch Man, which I enjoyed a lot as well, but I find myself enjoying Boku no Hero Academia even more.
If you're into Superpower/Action anime overall, I'd recommend Bungou Stray Dogs (also airing), Rokka no Yuusha, DanMachi, Noragami, and K Project.

The season is almost over though, so Bungou Stray Dogs and Boku no Hero Academia are coming close to an end (though I'm pretty sure Boku no Hero Academia is getting a 2nd season at some point).
If you like other genres besides Superpower/Action, then let me know and I'll be glad to give you some recommendations based on those.

 

I really enjoyed watching Akatsuki no Yona. It's fantasy/action with death, princesses, and dragons. I'm eagerly awaiting the sequel, if it comes.

 

The spring stuff or wait... let me check Hanabee... No, the June Anime Invasion, which is probably the Summer Releases. Those are coming out now aren't they?

Anyway, @[member="Alan"], you didn't really give us much to work on there... There are many things that FMA:Brotherhood can be similar too... If I can assume that you enjoy the fighting there are some. If you enjoyed other things (I have yet to watch FMA) then there are others.

Spoiler: I'll give you my suggestions. I can't promise that you may like them though!

Kabaneri of the Iron Fortress

The Irregular at Magic High School

Guilty Crown

DanMachi (Sanc will most likely agree )

Gangsta (Another old-ish one, seems to be a crime-based one)

Angel Beats

Toradora (This and Angel Beats are cool, but they are a Romance/Hurt & Comfort series)

That's all I can remember unless I go and find my hard-drive, but I'm too lazy... You can watch 'em on Kissanime, which I assume you do, or if you prefer watching them without paying for internet, let me know and I'll try and set up a zip file with a series on a Mediafire thing... I'll have to check that this isn't considered advertising though...