I have a ton! If you want to play Doom again, but from the perspective of 15-year old you, try this:

https://www.moddb.com/mods/project-brutality/downloads/proje...

Or if you were more into Heretic, try this:

https://forum.zdoom.org/viewtopic.php?t=56762

But you should also try new releases that were made thinking of the classics of the past. There's ton of crap, and develoepers that don't really understand what they are doing, but I recommend these:

https://store.steampowered.com/app/562860/Ion_Fury/

https://store.steampowered.com/app/2272250/Forgive_Me_Father...

I also recommend the Ashes Trilogy, which is like a blend of Stalker and Doom:

https://www.moddb.com/mods/ashes-2063/downloads/ashes-stand-...