There are a lot of websites that offer the course online, or if you have a college near you, they also typically offer a class that satisfies the pre-licensing requirement.

Example; I am invested in a fund that does active option plays on Tesla.

I have just started in a 3-day training for the Lee Arnold broker certification program and thus far just completed the online material required for preparation. 

I would say you need to play to your strengths, whatever those might be.

Our STR/MTR portfolio typically sees around 80% occupancy, and I’ve noticed that the online travel booking sites often push properties with consistently great guest experiences.

I attended the RALA 3-day training in Phoenix and took a couple of online courses as well, and while I found these courses to be very valuable in helping get a clearer understanding of the space and what it might take to be successful, I eventually I found it most beneficial to bring in a partner/advisor who has built residential assisted living facilities here in Texas and has been running them successfully.

Becca, the strong play in the Bay Area is value add.

Do you use a “book” for information or an online service ?

I've found deals in local online groups on Facebook, simply asking people for what I want. 

Check out other online guides available here: https://www.biggerpockets.com/guides3.