Of all the sites I post my novel, Scribblehub is the best, it has a great community and gives you good exposure.
RoyalRoad is great for semi-professional writers but they have little tolerance for average ones, they will just ignore you if you are lucky, if you are not, they will obliterate you with negatives and bad reviews.
Webnovel is ok but doesn't give you much exposure unless you publish a chapter like every day, also their contracts are famous for being completely one-sided.
Wattpad is ok too, but people there tend to look for only one specific genre, so don't expect many views.
Inkitt is a great place but with very few people, sadly.
Archive of our own is said to be a great place, but you actually need a reservation to create an account, which can take time.
I post my novel on those sites but is Scribblehub the one I usually update first, and where I spend most of my time, especially in the forums.