Background:

I have experience with workstations, but not so much with servers or network configurations. I have minimal Linux experience. I have my A Cert (circa 2007). I have (see Specs below), and I would like my (see Content below) to be accessible by most devices, only from within my LAN. I'd like to be able to move files from my phones and tablet to the network storage, and also access the storage from the Rokus, TVs, and other connected devices to play videos, music, view files. Printing from our phones would be a bonus. Streaming from/to devices would be good. I previously plugged in a 32GB USB thumbdrive into the router to experiment with that as an option for network storage, but it is flaky at best and the mapped share frequently vanishes from the networked computers. I'm seeking a low-power-consumption option for hosting about 2TB. No more than 6 connected devices are in use at any given time. Simpler is better, but I do appreciate flexibility and features. Security is a must.

Question:

What (hardware software) setup would this subreddit recommended for me to accomplish what I'm seeking?

Content:

• 80GB images

• 10GB documents

• 400GB GoPro 4K videos

• 300GB other videos

• 80GB music

• Limited regular backups

Specs:

• Netgear Nighthawk R7000P router (wired with Cat6 dual-band WIFI)

• TP-Link 8-port unmanaged switch

• 2 desktop PCs running Win7Pro (wired, Win10Pro soon)

• 2 laptops running Win10Pro (WIFI)

• 2 business laptops running Win10Pro (WIFI)

• 2 android smartphones (WIFI)

• Apple iPad mini (WIFI)

• Brother HL-2280DW network printer (wired)

• 2 Rokus (WIFI)

• LG Smart TV (WIFI)

• Samsung Smart TV (WIFI)

• Sony Bluray smart player (WIFI)

PS- I searched this sub and reddit for advice on the topic already. After many hours of looking, I thought I would post here to inquire. TIA