Listen to the masters. Most can be found on YouTube, you can get to others from these.
The best site for selected bongo styles and solos was Fidelseyeglasses but sadly, the hosting company went out of business and most of the music files Mark posted no longer play. He put his heart into choosing, digitizing, cleaning and posting a huge number of outstanding songs by the greatest Cuban percussionists. This is a major loss to our world of students of Afrocuban percussion, I hope he still has everything on his hard drive. Even if the songs no longer play on his website, you can still cut an paste the titles and bongo players names into YouTube and get a lot of them. Highly recommended.
Yeyito Iglesias with Cheo Marquetti Aprietala en el Rincon
https://www.youtube.com/watch?v=I1cxKkC_H9oYeyito with Cachao A Buscar Camarones
https://www.youtube.com/watch?v=DuquJCKWteAPapa Kila with Arsenio Kila, Quique y Chocolate
https://www.youtube.com/watch?v=4jbgLyGNe_cA few others:
Papa Kila with Chappottin and Miguelito Cuni Alto Songo
https://www.youtube.com/watch?v=e3MBEYbYsKgMongo Santamaria Monte Adentro nice typical bongo style, sabroso
https://www.youtube.com/watch?v=rydD9o5RFCMMongo classic Mazacote, he plays bongo as well as congas on this song
https://www.youtube.com/watch?v=3v1rOylcbPwTino Alonso "Papa Gofio" with Rumbavana showing you a new playing style you never saw before!
https://www.youtube.com/watch?v=sea3gr1anvkJohnny "Dandy" Rodriguez La Mulata Rumbera on Congahead.com Sabroso, tremendous sound he gets from the bongos
https://www.youtube.com/watch?v=F1s-W6hP4l8Johnny Rodriguez bongo lesson basic martillo and riffs
https://www.youtube.com/watch?v=8r0A3mllzUcAnd my personal favorite bongo solo of all time, Septeto Nacional La Batidora straight martillo and tumba then a killer bongo solo
https://www.youtube.com/watch?v=MrklhbcCEgsSi tu no bailas con eso no bailas con na'
Likewise, if those cuts and others you find with those guys on bongos don't inspire you to learn new stuff on bongos, may I suggest you get yourself a copy of Logic Pro or Cubase and start sequencing some EDM.