Hello!! There are some good colleges for engineering in Coimbatore are-
1)Amrita School of Engineering, Coimbatore
2)Coimbatore Institute of Technology, Coimbatore
3)Karunya Institute of Technology and Sciences, Coimbatore
4)R.V.S. College of Engineering and Technology (Faculty of Engineering), Sulur
5)Government College of Technology, Coimbatore
6)PSG College of Technology, Coimbatore
7)Sri Krishna College of Engineering and Technology, Coimbatore
8)Nehru Institute of Engineering and Technology, Coimbatore
9)Regional Centre of Anna University, Coimbatore, Coimbatore
10)Hindusthan College of Engineering and Technology, Coimbatore

Hey !
Here is a list of the top Engineering colleges in Coimbatore :
1) Amrita School of Engineering, Coimbatore
2) Coimbatore Institute of Technology, Coimbatore
3) Karunya Institute of Technology and Sciences, Coimbatore
4) Government College of Technology, Coimbatore
5) Kumaraguru College of Technology, Coimbatore
6) PSG College of Technology, Coimbatore
7) Sri Krishna College of Engineering and Technology, Coimbatore
8) Karpagam College of Engineering, Coimbatore
Do check the below link for information regarding the colleges.
https://engineering.careers360.com/colleges/ranking/top-engineering-colleges-in-coimbatore
Hope this helps
All the best !