Lots of great recommendations but I have not seen anyone mention the anime Made In Abyss or Dr. Stone.
Made In Abyss has some taboo content early in season 1, but it and season 2 story arcs are the best I've seen of any anime to date. You will also need to watch the third movie Dawn of the Deep Soul before season 2. Movies 1 and 2 are recaps of season 1.
Dr. Stone is also great as a zany "what if" modern civilization was sent back to the stone age. Similar to made in abyss, you need to watch the OVA between seasons 2 and 3.
Call out to Goblin Slayer season 1 as well. The series visuals and story deeply fall off after season 1.
Plex is a taboo topic anymore because of their recent business-focused changes. I personally use Plex as I've been a user since the early 2000s with no intentions to learn the nuances of Jellyfin, and get my remote streamers moved over to it.
Plex mixed with Sonarr, Radarr and Overseer fits my needs perfectly.