The BTC has made history today and broke its all time high record. It is currently trading around $ 20500 to 20600. BTC Dominance Index is around 65% which is very High. I personally think that it is the Right time to take entry in Good Alt coins ( Ranking from 2 to 20 on coinmarketcap). I believe that History of 2017 will be repeated soon. We will soon witness Huge rally in Alts. It should happen when BTC will stabilize around current levels and BTC dominance Index comes down to below 60%.
Even now mostly the big coins have moved and many alts are yet to even reach their previous all time highs, by now only btc, eth, bnb, dot etc have been able to break previous highs and grown nicely by now but there are dozens of others that are yet to reach there so definitely big buying opportunity is still there because all of those coins will also follow the btc or eth in price gain.