Hi, and welcome to this (user-to-user) Community!
Re: "I have the Apple HomePod and it doesn't feel like it's giving a lot of base"
Wondering if you are using the HomePod with an Apple device or Apple computer, and / or headphones:
Eg: On iPhone or iPad you can check whether "Reduce the bass" is turned on or off.
In the "Home app"
First tap on HomePod,
Tap 
Reduce the bass: Turn on Reduce Bass to reduce the low frequency output of HomePod.
More info.: Change HomePod settings - Apple Support
Third-party (Non-Apple) HomePod Bass test on YouTube viideo: https://www.youtube.com/watch?v=kjYntA6IzFg
Useful Resource: HomePod User Guide - Apple Support