This page demonstrates Sans fonts with at least 8 styles available on Google Fonts. It lacks a few entries that I didn't particularly care for, but covers most of them. If you need a lot of formatting options (beyond merely Bold, Italic, and Bold Italic), this should help you pick out a font sufficient for your purposes.

For fonts with fewer than eight styles, check here.

Thicker Fonts

A full bed kept jamming by whichever zoo quips exit. (Kanit)

A full bed kept jamming by whichever zoo quips exit. (Merriweather Sans)

A full bed kept jamming by whichever zoo quips exit. (Prompt)

Super-Condensed Fonts

A full bed kept jamming by whichever zoo quips exit. (Saira Extra Condensed)

A full bed kept jamming by whichever zoo quips exit. (Barlow Condensed)

A full bed kept jamming by whichever zoo quips exit. (Saira Condensed)

A full bed kept jamming by whichever zoo quips exit. (Archivo Narrow)

A full bed kept jamming by whichever zoo quips exit. (Encode Sans Condensed)

A full bed kept jamming by whichever zoo quips exit. (Barlow Semi Condensed)

A full bed kept jamming by whichever zoo quips exit. (Alegreya Sans)

Condensed Fonts

A full bed kept jamming by whichever zoo quips exit. (Sansita)

A full bed kept jamming by whichever zoo quips exit. (Saira Semi Condensed)

A full bed kept jamming by whichever zoo quips exit. (Catamaran)

A full bed kept jamming by whichever zoo quips exit. (Encode Sans Semi Condensed)

A full bed kept jamming by whichever zoo quips exit. (Titillium Web)

Condensed Fonts with Swoop L's

A full bed kept jamming by whichever zoo quips exit. (Asap Condensed)

A full bed kept jamming by whichever zoo quips exit. (Fira Sans Extra Condensed)

A full bed kept jamming by whichever zoo quips exit. (IBM Plex Sans Condensed)

A full bed kept jamming by whichever zoo quips exit. (Fira Sans Condensed)

A full bed kept jamming by whichever zoo quips exit. (Source Sans Pro)

A full bed kept jamming by whichever zoo quips exit. (Cabin)

A full bed kept jamming by whichever zoo quips exit. (Sarabun)

More Narrow Fonts

A full bed kept jamming by whichever zoo quips exit. (Barlow)

A full bed kept jamming by whichever zoo quips exit. (KoHo)

A full bed kept jamming by whichever zoo quips exit. (Lato)

Now We've Found a Good Width

A full bed kept jamming by whichever zoo quips exit. (Encode Sans)

A full bed kept jamming by whichever zoo quips exit. (Nunito)

A full bed kept jamming by whichever zoo quips exit. (Gothic A1)

A full bed kept jamming by whichever zoo quips exit. (Roboto)

A full bed kept jamming by whichever zoo quips exit. (Niramit)

A full bed kept jamming by whichever zoo quips exit. (Archivo)

A full bed kept jamming by whichever zoo quips exit. (Overpass)

A full bed kept jamming by whichever zoo quips exit. (Chakra Petch)

A full bed kept jamming by whichever zoo quips exit. (Nunito Sans)

And Another Good Width!

A full bed kept jamming by whichever zoo quips exit. (Josefin Sans)

A full bed kept jamming by whichever zoo quips exit. (Muli)

A full bed kept jamming by whichever zoo quips exit. (Libre Franklin)

A full bed kept jamming by whichever zoo quips exit. (Saira)

A full bed kept jamming by whichever zoo quips exit. (Chivo)

A full bed kept jamming by whichever zoo quips exit. (Rubik)

A full bed kept jamming by whichever zoo quips exit. (Krub)

A full bed kept jamming by whichever zoo quips exit. (Open Sans)

Good Widths with Swoop L's

A full bed kept jamming by whichever zoo quips exit. (Asap)

A full bed kept jamming by whichever zoo quips exit. (IBM Plex Sans)

A full bed kept jamming by whichever zoo quips exit. (K2D)

A full bed kept jamming by whichever zoo quips exit. (Ubuntu)

A full bed kept jamming by whichever zoo quips exit. (Fira Sans)

A full bed kept jamming by whichever zoo quips exit. (Bai Jamjuree)

A full bed kept jamming by whichever zoo quips exit. (Raleway)

A full bed kept jamming by whichever zoo quips exit. (Exo)

The Rest

A full bed kept jamming by whichever zoo quips exit. (Encode Sans Semi Expanded)

A full bed kept jamming by whichever zoo quips exit. (Proza Libre)

A full bed kept jamming by whichever zoo quips exit. (Kodchasan)

A full bed kept jamming by whichever zoo quips exit. (Poppins)

A full bed kept jamming by whichever zoo quips exit. (Fahkwang)

A full bed kept jamming by whichever zoo quips exit. (Encode Sans Expanded)

A full bed kept jamming by whichever zoo quips exit. (Montserrat)

And the Last Swoop L

A full bed kept jamming by whichever zoo quips exit. (Work Sans)