🚀 go-pugleaf

Meh, depends on what kind of games you're into. 
For instance, I like realistic tactical shooters, so I've been playing 
hideous destructor in ultimate doom alot recently...but that's a hard as 
balls mod.

Are you looking for mapsets, gameplay mods? What?

Good mapsets IMO:
>back to saturn X
>hellbound (a bit hard for new players)
>UAC Ultra

Good gameplay mods:
>ww-doomnukem
>ww-nazis
>Beautiful Doom

Note that most of these will only run under Gzdoom...and just to inform 
you, there aren't any mods that only run under DOS Doom. Most people who 
mod with backwards compatibility in mind aim for BOOM compatibility, and 
that's barring the fact the 99% of modders don't even go that far and 
just take the lazy route and straight up mod for gzdoom and it's 
relatives.

Also, look out for the doom community on 4chan's /vr/ board, the zdoom 
forums and doomworld. Hate to be blunt, but they're going to be alot more 
active than fucking USENET.