Here are some of the best tools I have used so far for Twitter.
All the tools listed below have different purposes but have the best features.
Do give a vote if you find it helpful
Followersanalysis helps you analyze Twitter followers, export followers list in CSV, compare multiple twitter accounts and their followers, track followers growth rate and search Twitter profiles.[(https://www.followersanalysis.com/)
This tool has almost all the feautres which anyone need like
-finding fake/spam/bot followers
-Blocking/Reporting your fake followers
-Tracking your followers
-get detailed followers analysis
-track unfollowers
for more details visit the site