Start with a LAMP Stack - Linux + Apache + MariaDB + PHP.

Be sure to use latest Ubuntu (Linux) as your OS.

Be sure to use latest MariaDB rather than MySQL for your database.

Hire someone who's written a truckload of SQL over decades.

Have them design your database, based on how products will be accessed + searched for, as this will determine speed of your system.

Can't tell you the number of clients I've taken on in my private hosting company, where years worth of code + database design has to be scrapped because it was done incorrectly.

Hire an expert to do this right... the first time + you'll save yourself a huge amount of time + money + you'll be able to sleep well at night.