Are you talking about tweeting replies based on keywords in a tweet directed towards a specific @user? If so, then you should be able to find a developer to create a simple Twitter bot for you. You can get really fancy with it and even train an AI model to come up with replies on its own.

Analyzing data is a much different beast than a Twitter bot. For one, Twitter data is unstructured data. Also, how do you want to analyze this data and how do you plan on using these results? That makes a big difference in the direction that the real answer to this question will take. There are a number of different tools available, but it's probably going to require a hybrid solution of custom programming on top of using the tools available.