You can look to the EC3 tool at www.buildingtransparency.org for a database of concrete EPDs. Also the SE 2050 Commitment Initiative https://www.se2050.org/ looking to advance this data/standards and the Bay Area Low Carbon Concrete Code. https://www.marincounty.org/depts/cd/divisions/sustainability/low-carbon-concrete-project And don’t miss the IStructE work in the UK.
https://www.istructe.org/resources/guidance/carbon-embodied-operational/