TP-LINK TL-SG1008PE 8-Port Gigabit PoE+ Rackmount Switch
Has 8 PoE+ ports. Gigabit speeds or more is quintessential these days. Comes with ears for rack mounting. Standard 1U height.
This is a cheaper alternative than going with Ubiquiti EdgeRouters and EdgeSwitches, but TP-Link products are solid and dependable, and I haven't had one fail on me in 3+ years of constantly running.