Make Visuals Great Again, Natural Vision Remastered, or QuantV (Old Version, New one is paid) would probably be my first picks.
MVGA- https://www.ausgamer.net/mods/file/30-make-visuals-great-again/
NVR- On Razed's Discord
QuantV 2.1.4- https://www.gtainside.com/en/gta5/mods/119996-quantv-2-1-4/ (Old Version of QuantV, new version is on his patreon).
You could use ENB if wanted, but that would bring down your framerate quite a bit. You could also use Reshade which has better FPS, (for me), but I just don't really like it all that much.
Hope I was helpful!
(You can use MVGA & NVR for FiveM if you were interested in that).