Twitter can provide an abundance of information. In Twitter you can search like nba (or) #nbadraft (or) "nba draft pick" and it will show all tweets related to nba (or) having the tag #nbadraft (or) having the word nba draft pick . Let a username be "niceguy" then, we can also search like fromniceguy and it will show you all the tweets from "niceguy" OR toniceguy and it shows tweets to "niceguy".
We can view profiles and analyze the media posted by that account.
So if you are really investigating somebody then searching "from", "to" and mentions really does help.
Also lets say the profile "niceguy" (joined on 22-02-2020) has 6k tweets, then it will take forever to scroll down and view all the tweets. Instead just search "fromniceguy since 2020-02-22 until 2021-01-22" . This doesn't end here. You can search like "nba draft pic since 2020-02-22 until 2021-01-22" in-order to view all tweets related to it. We can search like "fromniceguy nba" to view if niceguy has posted anything related to nba.
Another good tool is geo-code or geo-location. Typing them in the search bar will show tweets from users from that area (or geo-code/location). The steps are:
Search any location in google maps. Ex- Los Angeles. (Image 1)
Select the geo-code. (Image 2)
Copy it and paste in Twitter search bar. Ex. search - "geocode:34.0201613,-118.6919206,10km".
Thus it will show tweets from users living in a radius of 10km from that geocode.