Assuming you go the chosera route i’d stick with the plastic base it comes with to start, it’s definitely up to the job and then when you expand you can look into the right universal base for all your stones. One thing I can recommend is I use a pet food mat underneath to keep things a bit more tidy, something like this.
Other than that I use a cheap ish plastic base, to use something like this though you need to remove the plastic base that’s attached that’s why i’d say to hold off for now
The things i’d advise to get instead though (since the chosera has a base) is a strop, and a levelling stone - the cktg diamond plate is often recommended, with the more pricier option being the atoma plate