You shouldn't be looking at what you should avoid but rather looking at what you can include.

Eat a wide range of foods that you can tolerate.

As a nutrition coach i tell all my clients to avoid food avoidance. Obviously cut out what you can't tolerate well but apart from that keep everything on the menu in moderation.

Hire yourself a respected. I know quite a few guy in the industry who know what they are doing and do not use bro science. PM me if you want details.