Last year i lost my iphone 7 and i didnt find and i want to log in to icloud i remember the usernam and the password too but i cant acces cause i dont have the device to find it can we do something because i have important things

Click on the link reading "Didn't Receive Code"

This will give you a dropdown of the additional "trusted numbers" to receive the codes (or "voice" phone call) which should have been setup for just this purpose.

If you didn't set up - or can't access - your trusted numbers ... follow the instructions in the section titled, "If I can't sign in, how do I regain access to my account?" in the following article:

Two-factor authentication for Apple ID - Apple Support