You can have a look at Yolo V3 7, RetinaNet or SSD.
They have different performances but if you are begginer Yolo version 1 may be a good starting point 
Of course there are many others.
You may also google it and you will find for sure fancy tutorials.
This is a very good site to learn computer vision: https://www.pyimagesearch.com/2018/11/12/yolo-object-detection-with-opencv/ 14 and they did a tutorial about yolo with code and explanations.