You're bound to gain some fat as you bulk. You could do a slow bulk but chances are you'll still gain some fat along the way. Just like how you'll lose some muscles when you cut.

And no one knows how much you need to eat brah. You have to figure out your TDEE and eat at a 10-20% surplus to bulk (slower safer).

Something to note. You don't have to eat clean all the way to lose fat. As long as you do proper calculation, you can eat what you like. Cause at the end of the day, it's caloric deficit that burns fat. People always say, eat clean (sweet potato, steamed chicken, salad, etc) but in reality, you can eat something else too. Just make sure you have a caloric deficit.

Another thing to point out, there's no reason to avoid fat (except trans fat or too much saturated fat). Fat help regulates hormone and testosterone. You need fat in your diet. You need to read up on proper nutrition and plan your macros. Look up the term (IIFYM).

And you can't spot reduce, 1000 of twist per day will not help you lose much of them fat on your waist.

If you have (IIFYM) down, then you get to pick what you like to eat and incorporate them in your diet. This will make the cut less stressful and more enjoyable. I've tried salad every dinner back then now that I've did my research, I realized that I've wasted 2-3 months of useless torture