There's a 0.0% chance I trust my credit card number to Oracle. The Free Tier page says up to 2 VMs with 12GB of RAM.
Compute
Arm Compute Instance
Arm-based Ampere A1 cores and 12 GB of memory usable as 1 VM or 2 VMs
Always Free
1,500 OCPU hours and 9,000 GB hours per month