WAGN
Pabrai Wagons ETF
stockNYSEETF

In this subreddit, the answer will almost always be a diversified ETF. If you want to look on the basis of quality businesses, you could research a non-diversified ETF like WAGN. Keep in mind this will likely have more volatility so be cautious if go down this road and do your homework. The ETF is run by Mohnish Pabrai. He is friends with the great Warren Buffett.