i am on a high protein calorie deficit diet combined with exercise, and i'm losing weight well, but have hit a snag

this past couple of days my left big toe has flared up into what I now know is a gout attack, and I've worked out it's because of the extra protein in the form of meat and eggs i've been taking in as a part of this regime i'm on

the attack has subsided now, but I don't want to cut down on my protein because i'll start losing lean body mass. it's just fat i want to lose, so what foods do you eat to get your proteins if you do the same as me, and suffer from gout attacks?

I'm a courier btw, so finger foods are what i'm after, so I can eat on the move. What are the best foods in that case?

tia for any advice