Here are some resources I use all the time, for my own brand and for my clients.
Awesome (and free) stock photos from Unsplash
You should definitely get a pro to photograph your gym and your people, but for things like food, lifestyle and nature, Unsplash is the MVP, and you're free to use the shots as you please.
This sharing economy <3!
Printing business cards?
The best cards I've ever seen come from the UK, by way of Moo
If you're charging a premium price for training, you need to think premium when handing people your cards.
Social media inspo and news
Stay in the loop on what's new on Instagram with Later - I visit their blog once a week to get inspiration and learn what's happening in the fast moving world of social media.
Go there, and choose 1 thing to do with your Instagram account today.
These resources (and many, many more) are at your disposal, so use them to your advantage and elevate you brand.