Alphabet and Meta Platforms are both attractively priced right now.With the market down after a sell-off, some of the high-flying artificial intelligence (AI) stocks that used to be out of reach for most investors are starting to look more attractive. However, I'm unsure if Nvidia has become cheap enough to warrant an investment.Instead, I'm looking at two other companies that appear to be great buys amid the sell-off: Alphabet (GOOG -0.11%) (GOOGL -0.21%) and Meta Platforms (META -0.56%).AlphabetAlphabet i ...