I've always said over the last month that it is necessary to buy altcoins, and that's what we see? bitcoin's domination is falling.
If you have already chosen the altcoins that you think will gain next year, it is the right time to buy them. If not, I recommend you NEO, TRON, Credits, and Cardano.
take advantage of this time now because the condition of the socket is still very low to buy it and invested long term, I agree with the coin that you suggest to invest NEO and Cardano is my favorite coin to invest long term, because the coin brings technology that will be a lot benefits and have a team that continues to be active in developing the project they are working on to continue to increase its value.