You will find that a lot of the add ons haven’t been updated for a very long time (some more than a few years!) generally, as long as an add on has been updated at some point during this expansion then it will still work fine, some add ons that were updated before this xpac will still work ok, some of them will be broken. Sometimes the original creator of the add on stops playing but someone else updates the add on when changes need making, these updated add ons may not be put on curseforge and instead you may find them on the rift forums. I have tried to provide the most recent update link below.
All of the add ons listed below work well. If you want to try other add ons not listed below then go for it! If they don’t work then you can just delete them with no harm done.