Your Ethernet to Ethernet via Optical recommendations?

[Brucemck2]

I need to go out from a Unfi switch into an audiophile (Paul Pang dual stacked) switch. It's approximately a 20 foot run. The switch feeds my AV gear. At some future point I may upgrade the switch.

Ethernet cable --> optical converter --> optical fiber --> optical converter --> ethernet cable

What would you recommend for the two converters, the fiber itself, and the power supplies for those two converters?

Thanks.