As you have seen VRRP is equivalent to HSRP in Cisco and is an industry standard protocol.
Juniper does not have any load balancing features or equivalent to GLBP.
You could acheive some results by using ECMP in a routing design.
Or you could use Filter based forwarding features. But FBF is a different approach to the issue. These are routing based filters that send traffic out different paths based on criteria you setup.