It's not terribly hard to hit protein goals, but it does take paying attention. Protein powders do help, but a lot of the plant based ones don't taste very good (to me).
I hit 160-170g per day at 195 lbs eating a range of the following things: tofu (solid, general option), tofurkey + tempeh bacon sandwiches, gardein be'f crumbles or similar beef replacement crumbles, but a hidden gem if you're struggling is soy-free tofu made from fava beans. The macros are crazy, I think it's entirely protein, so something like 16g protein in a 70 calorie serving.

No problem! Here's the link/company that makes the one I buy: https://bigmountainfoods.com/products/soy-free-tofu
And for seitan, I know it's has a lot of protein, but I heard it isn't a complete protein source. Its fine to have, but just make sure you mix other stuff in so you can get all the essential amino acids you need.