Go here: https://biobutton.co/AuuPP
They offer free vps for students, however with no internet access. You need to pay 1$/month for port forwarding.
Also, for IBM cloud: https://biobutton.co/xYY4M
They give you a code which you can redeem on your ibm cloud account. All free of charge, not even 1 vcc.
You can run a container with 2 CPU and 2 GB RAM.