There is not a lot of information to go on, as to what is needed, but it sounds as if it is for production use, in which case I suggest you get something where you are guaranteed software updates.
So as the others mention, there are plenty of options, so here are a few suggestions assuming you are buying from new:
Suggestion 0 (Mikrotik):
- 1x Mikrotik CRS317 (16x port SFP+ switch) /
$ 328
- 3x Mikrotik CRS326 or CSS326 (24x1g + 2x sfp+ 10g) /
$ 180 or
$ 133 each
The CRS 317 acts as the core switch, where each CRS/CSS326 switch is connected via the 2 SFP+ ports in a LACP bond (giving redundancy and performance). Assuming you have servers, you can use the remaining 10 SFP+ ports for them.
This option is relatively cheap (compared to the number of ports you get), none of the switches support routing (adequately anyway) so are not L3 switches, but are pretty decent and the CRS326/CSS326 switches are fanless.
Suggestion 0.1 (Mikrotik)
Like the above, but without the CRS317 switch, you appoint one switch to be the core switch, and connect each other switch via a 10g link from it.
You don't get redundancy, but it is much cheaper. I suppose you could also connect the switches in a ring, but that setup relies on STP to not get you into issues with broadcast storms etc. and I don't know enough about that to recommend this type of solution.
Suggestion 1 (Cisco small business):
- 3x Cisco SG350X-24 (24x 1g + 2x sfp+ 10g + 2x RJ45 10g) /
$ 455 each
Again you appoint one switch to be core switch, connect one other SG350X via the SFP+'s and the other via RJ45.
The benefit of this solution, is that it is a L3 switch and of course that it says Cisco on the box (which I assume is 80% of the reason why people buy Cisco). These switches are not fanless.
Final comment:
These are just suggestions, you could definitely also just mix it up if you wanted that.
Keep in mind prices are just whatever I was able to find quickly, so don't assume it is the cheapest possible.
You may also think about how your network is structured and future needs, like will you need to do network segregation and do you expect to need more switches like this in the future.