The proposed method of diversification is good, it is used in the stock market. In our case, it is too early to use this method of diversification, since the market depends only on
BTC and
ETH. Nevertheless, I like projects related to energy. Here is part of the energy cryptosector:
WPR,
POWR,
MWAT,
BWT,
SLR. And some shits
EDRC,
ELEC, and others.
Just
BTC consumes energy equal to the consumption of a small country. It is necessary to somehow compensate for such consumption

.
Thanks for the suggestions. Yeah, it still might be a little early to start trying classify by sector, but I think it's a good idea to get started with before it gets too confusing. This way it will be more appealing for new investors coming in. They'll be able to see everything all neatly categorized and it will make so much sense to them.
New investors are usually mind blown by the amount of choices in Altcoins, and all these names sound a little silly to them. Having organization set out in front of them would make them more willing to put money into one coin or another, and it would make research easier as well.