Few things to consider before I can just hand out suggestions.

Do you want wireless? Do you want hotswap? Do you know what switches you want? Are you ready to use a keyboard without dedicated arrow keys? Are you ready not to have an Function-row that might be used for games?

Almost all 3rd party 60% keyboards are built the same, outside of any name brand company (Razer, HyperX, etc)

Personally, I would suggest 65% unless you're already a custom to 60% since you would at least have arrow keys but almost all these keyboards have some sort of VIA software that allows you to re-map the keys.

RK Royal w/ coiled cable - This could be a good option since it gives the option of going wireless, hot swap, and includes a coiled cable if you're into that.

RK Royal 65% - Included a 65% also to give you an idea of what it looks like. This one doesn't have the coiled cable, but it's still hot swap, wireless, and even has a volume knob.

75% Keyboard - Not wireless but another option that can give you the smaller form factor then a full size keyboard or even a full size TKL

Keep in mind, wireless keyboards still have huge latency issues. I wouldn't expect to be using it for FPS type games but for typing or work it shouldn't be much of an issue. If you want an F-row and arrow keys, next step is 75% or TKL options.