What cryptocurrency is worth long term investing with 2 dollars or less?
If you are looking for good profit in the future you must first look at the MarketCap and Total number of coins. A coin with large coin supply (billions) can't grow very much in the future, not even 1$.
My choice: Masari.
It's a Monero fork, good relashionship with Monero, only 18.5 millions total coin supply and it's still early, only 2500 sats on SouthXexchange.
Cheers !