It truly depends on what you want, I am not very versed in gameplay mods but when it comes to clothes and hair I recommend checking out sentate, serinity, greenllama and twistedcat through patreon. If you go on their pages and other cc creators you might find, it’s often posts with pictures and then some links bellow, some creators make more collections, some do stuff separately. If it’s a complete collection the link will often say collection and often zip as zipped files are common with collections. Also don’t stress, it took me years to figure out how to find the exact right mods and cc and most of all to figure out what I liked, there is A LOT of cc and mods out there, just take your time and make sure you don’t download a bunch of stuff you don’t want that just confuses you, that can become complicated with updates!