well according to coincodex.com these are the best coins below $1 value:-
Substratum (SUB)
Verge (XVG)
Cindicator (CND)
Status (SNT)
Cardano (ADA)
Substratum (SUB)
Nice list.I will add more:
StreamrDATAcoin (DATA)
Siacoin (SC)
Tether (USDT)
Stellar (XLM)
MaidSafe Coin (MAID)
BitShares (BTS)