Other than the obvious like meat, there are some protein sources that aren’t super filling. Mozzarella cheese actually has a pretty good protein to fat ratio, I put that shit in everything when I was doing keto. No added sugar peanut butter is another good one. And of course, having protein powder around if you need to supplement to reach your goal makes it a breeze to add another 30+ grams.
I average between 135-150g of protein per day. I also have struggled in the past to hit my protein macros.
I eat 2 meals per day plus a protein shake on a 16:8 or 20:4 schedule. I use 4-6 oz of Turkey / chicken or ground beef as the main event in any meal. Egg white are an easy cheat. I’ll add 1/2 cup egg whites to a 1 or 2 egg omelet or a protein shake to boost protein. I also try to make any snacks count. Beef sticks, cheese sticks. I happen to be keto so I may enjoy a snack food like Quest peanut butter cups or protein chips which will give me 12+g. That way if I do have a fun food it still has protein.
I personally feel that your body knows what it needs, especially when it comes to protein. Prioritise high-quality protein sources when you eat, like meat, fish, seafood and eggs, add some dairy, maybe some broth, and then eat as much as you feel like eating of those foods. Eat that first before you eat anything else so you are not filling up on other foods. Then don’t worry about it if you’re not meeting your “goals”. What is that number based on? How did they come up with it? Are we sure it’s some sort of universal rule? Also maybe your body needs time to adjust to eating more meat and that will happen naturally as well.
If you’re worried about hair loss, take a good quality collagen supplement. I use a plain, unflavored, bovine collagen powder which I add to tea and coffee and I have never had a problem with hair loss.