My only multi-issue mini-zine was sonnetzine, I tend to do one-offs in this format.
The following were made using the online tool PocketMod, which is not really designed for zine-making. But zine-making is always about adapting tools to a new use.
The next batch were all made by building a custom template in Google Slides. You can learn the technique by watching this YouTube video. I have a second issue of my Esperanto-language zine, Komencanto, in the works.
I'm particularly fond of The Legend of Floppy Socks Joe, as I drew all the art in my sketchbook, scanned it, then inked and colored it in photoshop.
My newest zine-making tool is the Electric Zine Maker, a cool program you can get at alienmelon.itch.io. The first one I made with this tool was just a test with various images sitting on my desktop. The second one, Tiny, tiny MONSTERS is a micro-mini, which makes a 16 panel zine out of a single sheet of paper. The Electric Zine Maker makes building odd minizine formats a snap and it provides great folding and cutting instructions! I made FUCK NAZIS with this tool when one day I woke up mad about the rise of fascism in the US and I wasn't able to really get a grip until I made something about it.
These next zines were made the old-fashioned way, strictly with paper, a scissors, and some writing implements. My daughter and I do that sometimes as a father/daughter funtime activity.
Back in 2006 I made a mini-comic about Ben Grimm, the Thing. I was inspired by Scott McCloud.
Forsooth, varlet! Tis I, Sir Tiny Knight!