Yes, both Okta and 8x8 offer a Free Trial.
Okta is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
8x8 is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Okta Starts at $2/User/Month whereas for 8x8 Starts at $12/User/Month.
Some top alternatives to Okta includes Oracle Identity Management, SailPoint IdentityIQ, WSO2 Identity Server, Keycloak, Azure AD, Ping Intelligent Identity, Ping Identity, Teamstack, Auth0, Frontegg and Login-Master.
Some top alternatives to 8x8 includes XCALLY, RingCentral Office, 3CX, ice Contact Center, VoiceIQ, RingCentral Contact Center, Vocantas Communicate, Squaretalk, i2x and RingCentral Engage Digital.