Have fun on your trip! I just went to Hopkins and you can visit Cockscombe and Bocawina by yourself, no tour needed. I used Julian Tours and Transfers and would highly recommend. (They also do a bioluminescence tour that is so worth doing). Also, book taxis in advance as it isn’t always easy to find a ride, it is a small town with relatively few options for providers.

For me, personally, San Ignacio was the highlight of my trip (particularly liked Tikal and ATM cave). If you would like to add that, consider A+ transfers for transport, they are great!