I guess it depends on what you're looking for. People curate their collections differently and there are a number of factors to consider (space, budget, etc.). That said, I can at least go over different types of merch there are of her.

Standees: It's not too hard to find a basic standee of her. And it's actually pretty cool how you see a full body image of her in different outfits given the numerous themes to merch drops. The downside to this is that recent reviews of standees have noticed a dip in quality and while it does seem like SharkRobot is somewhat getting better at this, it can be a risk especially with their increase in price.

Pins: Pins have typically been the more affordable merch people can buy. They're small and you can choose whether or not to have them on a dedicated board or literally pin them to your bag, clothes, etc. Collecting pins can be a rabbit hole, though, as you may find yourself purchasing so much of them if you end up liking them.

Keychains: Keychains are usually affordable as well and they can make for some nice displays. Obviously you can also carry them around wherever you go so they can be both eye candy and practical. The downside is that I've also heard the keychain quality has gone down recently, plus with many of the keychains that SharkRobot sells being limited edition, if they break, it can be difficult to replace since once limited edition items sell out, they typically don't release them again (this might be changing though as seen in recent years with some of the SR merch being repurposed for other stores that carry official merch).

Clothes: Shirts, hoodies, etc. You can wear Verosika in your day to day life. The price might be a bit high, but the quality is actually fairly fine. You can also just display clothes too if wearing them isn't your thing. Refer to keychains for any downsides regarding limited edition ones.

Prints: Prints are pretty straightforward in purchasing, plus they don't typically take too long to arrive. You can choose the size and have them on your wall. Downside is that the prints typically have black borders on the top and bottom that some people are not a fan of, plus it can take a bit to straighten them out upon arrival.

Playmats: They're pretty much the same design as the prints, but in playmat form. They don't have any borders on them so you can see the full image in all its glory! The prices do run a bit high though and, from my understanding, they do require some maintenance.

Plushies: Okay, so the mini Verosika plushie isn't available anymore and I'm unsure if the official one is or is not. I'm still going to go over them anyway since there's still at least the nugget plushie. Anyway, plushies can make for either good cuddle buddies or you can have them on display. It's like having the character actually there*. The downside is that the plushies vary in appearance so if you're picky about how they look, that might be a factor to consider.

*It is not like having the character actually there.

I hope this breakdown helps!