I want to know who keep trying to login into my account can I check location

If you had enabled Two-factor authentication for Apple ID - Apple Support all your devices will get an intimation / notification of the location being used to log into your Apple ID with an option to allow / disallow.

Thumb Rules:

1. Don't share Apple IDs
2. Don't Jail Break
3. Don't share sensitive informations pertaining to your device and payment methods
4. Beware of Phishing

However --> If you think your Apple ID has been compromised - Apple ...

What makes you think someone is trying to get into your account?

If you have this doubt (which is very unlikely), the best thing to do to protect yourself is to change your Apple ID Password, following these steps:--> Change your Apple ID password - Apple Support

Regards

Giulio