You should bulk first if you are skinny fat. A 10% caloric surplus is optimal to build muscle while ensuring you don't put on a lot of excess body fat. Stay in a surplus for a minimum of 4 months and then begin a slow, gradual cut.
When should you bulk?
If your goal is to gain muscle and strength and you aren't concerned with gaining a bit of fat in the process, a bulk may be a good choice. On the other hand, if you're looking to lose fat and maintain muscle, a cut may be more in line with your goals. For individualized guidance, consult a registered dietitian.
Should I bulk or lean bulk?
The Verdict. Both methods of bulking offer unique benefits, and like most things the best diet for you likely depends on the person. However, based on the existing research, lean bulks are likely your best bet for adding more lean mass and setting yourself up for more success and better results in the long run.