I think Monero has probably done enough to cement itself as a top privacy coin in its own right.
Wish I had got in on PIVX early simply to run a masternode and it not cost a fortune to set up, the returns arn't massive now but if you had got on it early then you would be laughing.
DeepOnion, once airdrop is finished in a couple months has a lot of potential, there's plenty of development going on with it and the use of Tor, OBFS4 and MEEK are great privacy additions.
Monero is still the top pick imo , most coins seems to be straight up copying the tech they have.
Also sumo is worth it to take a look at , also a monero fork but lower supply and price right now.