I update and created the Rift Discussion thread, use that is you want info on Rift supported mods for 1.13 or 1.13.2 modded environments, tutorials for install, mod lists, Rift mods or Datapack conflicts to provide information to players who question Forge for 1.13 and want 1.13 modded experiences.
Here are some links to Curseforge for safe mod searching of the mods I know support Rift and the generic or stricter filter I've used to differ all this over those that do or don't actually work for 1.13 or those that don't use Rift.
I also linked my thread if you want to look through it as I update it often. I'm not plugging myself just providing the information, that's all. I created it for informing players so I'm giving the info out if you want to use it. Its up to the player, not me after all.
Rift Modloader (for 1.13 mods, not 1.13.2, the links to that are different to find, use Aquarius or Voxel Map's mod pages for the 1.13.2 version of Rift. They support Rift for 1.13.2 at the moment, only the two of them. At least to my knowledge anyways)
Mods that Curseforge filters to state what works with Rift over mods that don't use Rift and could state that they are for 1.13 and don't support Rift. This will make it easier to tell what is Rift supported and never get it wrong unless you filter it again somehow, so this is the fool proof enough direction of mods if you really want to use them in 1.13:
My thread on 1.13 & 1.13.2 mods environments, Rift modloader install tutorials, Rift & Datapack conflicts (as good as I can detail them for accuracy, I always am open to updating the inaccuracies) and more if your curious.