Some coin is very bullish and you can make good profit. Luna Was my first choice but now its already pump 100% and now its too risky. Wait for market, if it down from 50$ than you can take entrt.
Dot and ADa is down and best for first entry. Similarly Bico coin is very bullish.
I prefer to make entries as well on Polkadot and Cardano for now as these two coins are very good to get at the current price as it is a very low discount price for both in the market, while Luna is still very high to buy right now.
Polkadot and Cardano are two coins that have the potential to continue to grow,
I think it's a good decision to buy both and invest in the long term maybe it will give a big profit,
apart from that everyone has their own decisions depending on the results of their research