gaining strength/muscle

If you're still working on losing fat, then some more definition will come if you're eating enough protein (90-100g would likely be enough for you) to minimize the loss of your lean body mass (muscle, bone, anything not fat in your body). But if you're at a happy weight and happy wtih your body fat percentage, then switch to maintenance until you figure out how many calories you need to maintain your weight, then switch to a surplus (10% extra is usually enough, or up to 200-300 cals) while eating enough protein and lifting weights regularly. If strength is your primary goal, then use a strength rep/set scheme: about 3-5 sets for 4-6 reps each. I do 4 sets (with 3-4 warm up sets first) for 4-5 reps. Lift as heavy as you can. And if you'd like a bit of muscle increase - more than what the strength training will provide - then throw in a hypertrophy day or some hypertrophy sets; 6-10 reps for a few sets at whatever weight you can handle for your rep max (so if you choose to go all the way up to 10 reps, then by the time you get to 8-9 reps you should find it tiring).

But to emphasize, if you're not at a low enough body fat % (likely below 20% as that's when you start getting more definition without flexing) then any training you do while in a surplus is potentially going to result in you looking "bulky," in that you will grow both your strength/muscle AND increase your fat a bit. So there will be a little bit more fat, nothing major though, and it will be covering your muscles. So you will look larger than you'd like. When training to bulk/increase strength while eating appropriately, being at a lower body fat will really help with the aesthetics portion of it.