The S&P 500 has hit an all-time high in 2024, confirming a new bull market. With so many stocks surging, investors might wonder if there are still opportunities in the market today.Financial stocks can make a solid addition to investors' portfolios. They can provide diversification into companies with stellar cash flows and track records of success. Here are three top-notch finance stocks to buy this March. 1. Berkshire HathawayWhen it comes to solid returns over the long haul, Berkshire Hathaway (BRK.A -0. ...