Don’t like Sonarr/Radarr? Don’t like Jellyfin?
Check these alternative solutions, there is bound to be one you like.

Jellyfin - The Media Server

jellyfin/jellyfin : The Free Software Media System

You can’t really go wrong with any alternative:

xbmc/xbmc : Kodi Home theater/media center software and entertainment hub for digital media.

osmc/osmc : An OSMC (Open Source Media Center)

Red5/red5-server : Red5 Server core

gerbera/gerbera : UPnP Media Server for 2020: Stream your digital media through your home network

Plex

There is also Plex of course. You’ll find most plugins, addons, etc for Plex but for this series, Plex was not really an option for me as it is not open-source.

If you do decide to go with Plex, be sure to check out some companion projects:

Tautulli/Tautulli : monitoring and tracking tool for Plex Media Server

plexinc/pms-docker : Plex Media Server Docker repo, for all your PMS docker needs.

Sonarr & Radarr - Library Management

Sonarr/Sonarr : Smart PVR for newsgroup and bittorrent users.

Radarr/Radarr : A fork of Sonarr to work with movies à la Couchpotato.

I believe that Sonarr/Radarr is currently the way to go and that these alternatives should not be considered unless you are already used to them.

pymedusa/Medusa : Automatic Video Library Manager for TV Shows.

SickChill/SickChill : Automatic Video Library Manager for TV Shows

sickgear/sickgear : TV fork of Sick-Beard to fully automate TV enjoyment with innovation.

qBittorrent - Torrent Download Client

qbittorrent/qBittorrent : qBittorrent BitTorrent client

qBittorrent is the way to go these days with its built-in web UI. Deluge is another download client with great integration in other projects.

transmission/transmission : Transmission BitTorrent client

deluge-torrent/deluge : Deluge BitTorrent client

Novik/ruTorrent : Yet another web front-end for rTorrent

aria2/aria2 : a lightweight multi-protocol & multi-source download utility

mayswind/AriaNg : AriaNg, a modern web frontend making aria2 easier to use.

Bazarr - Subtitles

morpheus65535/bazarr : A companion to Sonarr and Radarr to manage and download subtitles.

The beauty of Bazarr is that it’s already integrated with Sonarr/Radarr. You can pick any subtitle-downloader, like Subliminal, and connect it with a custom script (via Settings > Connect > Custom Script) in Sonarr/Radarr.

Diaoul/subliminal : Subliminal - Subtitles, faster than your thoughts

Question is if you really need one because Jellyfin also has some subtitle support (but is it enough).