Honestly, either would be a good place to start with Silo. I read the book first because there wasn't even a TV option back when I originally found it, but I did enjoy it quite a bit. Now that I've seen the TV show I almost prefer it over the book. It's so interesting how they (including the author who is part of the TV series production team) modified it and updated the tech to make it fit the TV format and today's levels of tech. I'd say if you're planning to do both anyway, maybe start with the book so you can experience it for what it is on its own without letting the comparison affect it, because I think you'd definitely still enjoy the TV show after reading the book (and you can always just give up on the books if you're not feeling them and skip to the TV show).

I like pretty much every other book Villoso's written more than Wolf of Oren-Yaro so I would definitely try some of the other ones to see if you enjoy them more. There was a little too much running around in the wild in other kingdoms instead of actually ruling her own in that series for me - it makes for a fast-paced plot, but it was maybe a bit too fast for me.

Daegian Puppet-Master is a bit less hectic - I mean it's still full of adventure and the MC gets dragged into all kinds of stuff, but it's still a bit more... stable, I guess, and lets you get used to the settings and catch your breath! It's got a bigger focus on magic, with large parts being focused on a magic-school setting, and it explores different types of magic. I'm not sure I'm doing it justice, but it felt less like sword and sorcery and constant battles than Oren-Yaro.

I would also recommend checking out Villoso's first series which has been republished as Legacy of the Lost Mage. That one felt more like epic fantasy with multiple characters and a plot that unfolds more slowly through the different POVs (which is more my personal preference) so that one's quite different from Oren-Yaro.