Found via https://summitroute.com/; Found by copying the HTML of https://docs.aws.amazon.com/config/latest/developerguide/resource-config-reference.html to a file and running: grep "AWS::" tmp.txt | grep -v "," | grep -v "\." | sed 's/.*AWS:/AWS:/' | sed 's/<.*//' | sort

aws_config_resources.txt

AWS::ACM::Certificate
AWS::ApiGateway::RestApi
AWS::ApiGateway::Stage
AWS::ApiGatewayV2::Api
AWS::ApiGatewayV2::Stage
AWS::AutoScaling::AutoScalingGroup
AWS::AutoScaling::LaunchConfiguration
AWS::AutoScaling::ScalingPolicy
AWS::AutoScaling::ScheduledAction
AWS::CloudFormation::Stack
AWS::CloudFront::Distribution
AWS::CloudFront::StreamingDistribution
AWS::CloudTrail::Trail
AWS::CloudWatch::Alarm
AWS::CodeBuild::Project
AWS::CodePipeline::Pipeline
AWS::DynamoDB::Table
AWS::EC2::CustomerGateway
AWS::EC2::EIP
AWS::EC2::EgressOnlyInternetGateway
AWS::EC2::FlowLog
AWS::EC2::Host
AWS::EC2::Instance
AWS::EC2::InternetGateway
AWS::EC2::NatGateway
AWS::EC2::NetworkAcl
AWS::EC2::NetworkInterface
AWS::EC2::RouteTable
AWS::EC2::SecurityGroup
AWS::EC2::Subnet
AWS::EC2::VPC
AWS::EC2::VPCEndpoint
AWS::EC2::VPCEndpointService
AWS::EC2::VPCPeeringConnection
AWS::EC2::VPNConnection
AWS::EC2::VPNGateway
AWS::EC2::Volume
AWS::ElasticBeanstalk::Application
AWS::ElasticBeanstalk::ApplicationVersion
AWS::ElasticBeanstalk::Environment
AWS::ElasticLoadBalancing::LoadBalancer
AWS::ElasticLoadBalancingV2::LoadBalancer
AWS::ElasticLoadBalancingV2::LoadBalancer
AWS::Elasticsearch::Domain
AWS::IAM::Group
AWS::IAM::Policy
AWS::IAM::Role
AWS::IAM::User
AWS::KMS::Key
AWS::Lambda::Function
AWS::QLDB::Ledger
AWS::RDS::DBCluster
AWS::RDS::DBClusterSnapshot
AWS::RDS::DBInstance
AWS::RDS::DBSecurityGroup
AWS::RDS::DBSnapshot
AWS::RDS::DBSubnetGroup
AWS::RDS::EventSubscription
AWS::Redshift::Cluster
AWS::Redshift::ClusterParameterGroup
AWS::Redshift::ClusterSecurityGroup
AWS::Redshift::ClusterSnapshot
AWS::Redshift::ClusterSubnetGroup
AWS::Redshift::EventSubscription
AWS::S3::AccountPublicAccessBlock
AWS::S3::Bucket
AWS::SNS::Topic
AWS::SQS::Queue
AWS::SSM::AssociationCompliance
AWS::SSM::FileData
AWS::SSM::ManagedInstanceInventory
AWS::SSM::PatchCompliance
AWS::SecretsManager::Secret
AWS::ServiceCatalog::CloudFormationProduct
AWS::ServiceCatalog::CloudFormationProvisionedProduct
AWS::ServiceCatalog::Portfolio
AWS::Shield::Protection
AWS::ShieldRegional::Protection
AWS::WAF::RateBasedRule
AWS::WAF::Rule
AWS::WAF::RuleGroup
AWS::WAF::WebACL
AWS::WAFRegional::RateBasedRule
AWS::WAFRegional::Rule
AWS::WAFRegional::RuleGroup
AWS::WAFRegional::WebACL
AWS::XRay::EncryptionConfig