Hello Chavy!
I think we may be a good fit for you. We have two raid groups at the moment, one that is more casual and for those that are lower level gearing up and we also have a progression raid for those that want to get towards the end of heroic and into Mythic Nyalotha. We also group together for M+'s and some random tmog runs.
Feel free to take a gander at our thread and please let me know if you have any questions or interest.