There are many options, but it comes down to renting or buying.
As previously suggested, you could rent in a neighbourhood you like. The benefits of that typically include a more prims, a more controlled environment, and, renting week by week, you can easily go at any time. Sometimes there's also a really nice community environment.
If you want to buy and you're a premium member, 1024 sq m of land use fee is included. So, you could just pay the one-time fee of the land and be done. But there are disadvantages: fewer prims and you never know what kind of neighbours you're going to get.
I found a nice protected, beach side parcel on mainland. So far, I've got good neighbours. I used the search feature (Land & Rentals) and also hopped around on the map. I also had quite a bit of help here on the forums.