If you can see your abs which clearly you do, I would do a slight surplus to lean bulk and focus on building that base more..
Maybe start doing some weighted variations for abs or focus on slowing the tempo/contracting to make them pop more and grow. .
Honestly I couldn't guess your BF %, but I'd say you're at a pretty good level. Since you are fairly lean, controlling fat gain should be easier as it'll be easy to see your body changing.
If you were more fat trying to build muscle, than gains would be difficult to gauge as to what is muscle vs more fat.. Either way, expect to put on some fat gains, but with control you can put on more muscle with minimal fat.
You're lean enough to see that V shape coming in those abs so great job!