Lists are great for integrating with your IMDB Watchlist and for following automated lists.
While lists can be filtered on Genre, Year(s) etc, which filters are available depends on the source (ex: IMDB vs TMDB) but is typically rather limited.

Let’s have a look at some projects that can help with populating Sonarr/Radarr in a manual or automated way.

Containers

Seerr

Seerr Logo

seerr-team/seerr : Request management and media discovery for Plex, Jellyfin and Emby

Seerr is where things are headed: the Overseerr and Jellyseerr teams merged into one project with a single shared codebase.

sct/overseerr : Request management and media discovery tool for the Plex ecosystem

Fallenbagel/jellyseerr : Fork of Overseerr for jellyfin support

Checkout the UI

SuggestArr

giuseppe99barchetta/SuggestArr : Reads your Jellyfin/Plex/Emby watch history and auto-requests similar titles into Seerr.

Seerr is the request box; SuggestArr is what fills it for you. It reads your Jellyfin watch history and automatically requests similar titles into Seerr, which hands them off to Sonarr/Radarr. Nobody has to search for anything — the library just refills itself in the background. Quantity-over-quality as a running container, which is rather the whole point around here.

Discord

activexray/Doplarr : An *arr request bot for Discord

activexray/doplarr_rs : Rust rewrite of Doplarr

autobrr

autobrr Logo

autobrr/autobrr : Modern download automation: monitors IRC announce channels and RSS feeds in real time and grabs releases matching your filters.

The spiritual successor to autodl-irssi and FlexGet for the race-to-download crowd: instead of following lists, autobrr watches tracker announce channels live and instantly grabs anything matching your filters, straight into qBittorrent/Sonarr/Radarr. Also handles cross-seeding.

Deprecated

JagandeepBrar/LunaSea : Self-hosted software controller built using Flutter

l3uddz/traktarr : Script to add new series & movies to Sonarr/Radarr based on Trakt lists.

petio-team/petio : Petio Request, Discover, Review (for Plex)

Ombi

Ombi Logo

Ombi-app/Ombi : Want a Movie or TV Show on Plex/Emby/Jellyfin? Use Ombi!

Ombi was already mentioned in earlier articles as something that you’d give to your spouse so s/he can easily request or directly download stuff without having to know about the complexities of Sonarr/Radarr.

But Ombi can be great for yourself as well, it has an easy-to-use interface for discovering new things which you can then send directly to Radarr/Sonarr.

Checkout the live demo