According to Santiment (@santimentfeed), the top cryptocurrencies by notable development activity over the past 30 days include Internet Computer (ICP), Chainlink (LINK), Starknet (STRK), and Optimism (OP). ICP and LINK maintained their positions, while STRK showed an upward trend, and OP experienced a decline. This activity could signal potential trading opportunities based on developer engagement and project progress.