Nessié,
I am the guild leader and raid leader for Cairdeas. We are a very old, established guild focusing on clearing heroic content on Tues and Thurs from 8-10:30 pm est.
Through Legion we were focused on Mythic raiding, but like you we decided to focus on a more casual experience by setting our collective goal at clearing Heroic each tier.
If that sounds like something you are interested in then we should talk. I don’t really have another priest healing spot open, but I definitely have a spot for your warrior.
More info:
https://us.forums.blizzard.com/en/wow/t/a-cairdeas-old-school-heroic-raiding-guild-tues-thurs/679007
Sevenfold