You list so many that it is difficult to narrow the selection, but i listened to that vybz guy, and that was reggae -he used an organ. ZynAddSubFx can make all instrument sounds, and there are several hundred good presets, but if you want advice on a specific instrument the best to Find a video or soundclip online, with the exact instrument sound, you are looking for. -Link to it!
You need to add exact timestamps, for where the wanted sound starts, and less important -ends
Like @2:32 -> 2:55
Besides that, since you are new in Forum
Welcome Judebeatz !
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