TL;DR- No.
You can't install homebrew (including unofficial emulators) on the Switch without being able to set up and boot into a hacked emuNAND (effectively a hacked backup copy of the Switch OS running off the microSD). Afaik you can't do that without a launch edition Switch where you can short the controller pins to access the recovery "menu" and use that to push custom "hack" code to the Switch.
switch.hacks.guide is your friend if you want a reputable source on the current best method to get emuNAND set up. The current tool/custom OS/whatever the fuck they call it is named Atmosphere.
If you have an Android phone, you can try emulating those games using PPSSPP, and if it works at a decent speed (it probably will) you can pick up a phone mount for your controller of choice and a USB C to USB C cable to just slap the phone onto the top of a controller and then use your phone to emulate from.