wondering... need some ideas

Me
So my boyf got a new job, it's a big deal full of contracts and stuff he's not allowed to talk about. Steady income, all that. It's great for him, everything he wants to do in life! But he's all freaked out because this job will require him to move around for days to months at a time to different worksites. I am not able to travel around much so I know going to visit him when he's away won't be a good option. We aren't good at long distance at all and I'm dreaded the poor attitude. Are there any of you in similar situations? If so how did you guys help each other in the relationship get through it? Are there any ideas I can do long distance to show him I'm thinking about him and care? (I'll message him of course, but it doesn't feel like enough)  
Thank you! ❤️✌🏼