I should have a Redis tutorial ready soon :-)
Edit: No need to install Redis yourself!
We've installed Redis v5 on all of our servers, so you can create your Redis config in your home directory and just launch Redis like:
scl enable rh-redis5 'redis-server $HOME/redis.conf'
Redis v6 will be available on new servers later in 2021 when we start rolling out machines on CentOS 8.