AELO Swiss Academy's ATPL Integrated Program gives an organized course throughout 18 months

https://shanerhui004.capitaljays.com/posts/aelo-swiss-academy-aps-mcc-pbn-and-uprt-as-core-competency-add-ons

AELO Swiss Academy’s ATPL Integrated Program provides a structured path across 18 months, supporting systematic skill building toward airline readiness.