1. Binance coin/BNB — I will hold and re-buy on corrections as much as I can while Binance stays my main marketplace. Actually BNB-market allowed me to x4 my deposits in 2018 by 3-way trading maneuvers (..>altcoins<>BNB<>BTC<>altcoins<..);
2. Cardano/ADA — the only altcoin I'm going with now (besides BNB) until it hits at least 0.13$ or 0,00449BNB (and then decide re-buy or go with other alts for a while or just continue with BNB/BTC);
3. Litecoin/LTC — stablest I saw during overall deep (I'm not an expert but it was impression I've got);
4. This place is reserved for the best stable-coin based on real amount of Platinum/Gold/Silver/Palladium/Iridium exist, that will not occur a scam and become some kind of stable-coin standard;
5. Ripple/XRP — placing it last only because of my own feelings about offline banks (and therefore governments) taking part in crypto... but I must admit it worth investing (during deepest correction moments).

ETH, XLM, NEO, IOTA, and more are worth investing but I was not paying enough attention there
so I give here only top-5 I was really thinking of

P.S.
Last year I used to trade some TRX (and ZEC/XMR/XVG/DASH/BTCZ a year before) but I confused with security troubles USA claiming about money laundering through full-anonymity coins, so I decided to put them down until this things become clear to me.