MariaDB is a dropin replacement of MySQL
Installation
$ su root $ yum install mariadb mariadb-server
Initial setup
First let's start MariaDB
systemctl start mariadb
Now start the secure installation assistant
mysql_secure_installation
Press enter if you didn't have setup a password previously
Then it is advisable to answer as follows
Set root password? [Y/n] Y
Remove anonymous users? [Y/n] Y
Disallow root login remotely? [Y/n] Y
Remove test database and access to it? [Y/n] Y
Reload privilege tables now? [Y/n] Y
To start MariaDB on boot
systemctl enable mariadb
GUI frontends
There are some popular frontends as phpMyAdmin