There is no one sized fits all vaccination program - it all depends on area, closed vs open herd, disease prevalence, etc and it should be tailored to your specific herd and your specific needs.
Some programs (ie bull tests, feeder calf sales) have specific requirements. There are billions (OK maybe not quite that many) of vaccinations out there - I think it is a good idea to find one of 2 and become familiar with them
I personally vaccinate for IBR, BRSV, PI3, BVD types 1 and 2, the "5 old leptos", lepto hardjo bovis, rabies, and the 7 clostridial organisms
I use primarily Pfizer vaccines - Cattlemaster for cows, Bovi-Shield for calves, Vision 7, Spirovac, and Merial LA rabies. Steers get tetanus toxoid. Anti toxins of any type are prone to cause allergic reactions
Having epinephrine is a good idea if you are vaccinating with anything - things happen. Most epinephrine needs to be refrigerated, however there is some that can be kept at room temperature...it is (naturally) more expensive.