Love that font, it's one of my favorites!
Other favorites of mine would be IndieStar https://www.dafont.com/indiestar-bb.font and Anime Ace (which I actually use for my own comic) https://www.dafont.com/anime-ace-bb.font
Generally speaking, both Dafont and Fontsquirrel are very good sources for nice and free fonts you could use one suggestion: look at some of your favorite comics and try to figure out what kind of font they use: is it rounded? Pointy? Serif or sans-serif? Once you've figured out the type of font you like, look for similar stuff on Dafont/Fontsquirrel/anywhere else (Dafont seems to be in maintenance right now so I can't check it, but Fontsquirrel has an entire section dedicated to comic fonts https://www.fontsquirrel.com/fonts/list/classification/comic). You may not find the exact font your favorite comic uses (more often than not they're licensed fonts that cost quite a bit of money), but you may find something similar that doesn't cost quite as much