RedisBrute is a bruteforcer for Redis with support for Redis ACLs. Most existing options don't appear to support username / password combinations introduced with ACL support in Redis 6 - https://redis.io/docs/management/security/acl/
./redisbrute -h
Redis brute forcer
Usage: redisbrute [OPTIONS] --passwords <PASSWORDS>
Options:
-i, --ip <IP> Redis host [default: 127.0.0.1]
--port <PORT> Redis port [default: 6379]
-u, --users <USERS> Username list for ACL brute forcing [default: ]
-p, --passwords <PASSWORDS> Password file
-t, --threads <THREADS> Number of threads to use [default: 5]
-h, --help Print help
-V, --version Print version
./redisbrute -p /usr/share/wordlists/rockyou.txt -i localhost -t 10
./redisbrute -p /usr/share/wordlists/rockyou.txt -i localhost -t 10 -u /path/to/userlist.txt