Alibaba cloud offer free trial for all new customers . All you have to do is register and automatically receive free credits worth $300.
The $300 credit is split across two areas: $50 is allocated to Elastic Compute Server (ECS) instances, Server Load Balancer and Elastic IPs.
The other $250 is for database, data, media, network, and security services such as ApsaraDB, Object Storage Service, Table Store, Content Delivery Network, Data Transmission Service, E-MapReduce, Anti-DDoS Pro, Mobile Security, Web Application Firewall and ApsaraVideo Live.
Read full terms here
Another way of getting free Credits is through their referral program…
You will $20-$300 in credit for each friend that spends $20 or more. You can get more details about their referral program here.
Hope this helps