Now, to choose accommodation
, you can use couchsurfing if you go backpacking or with low budget or choose platforms like Booking
(click on the link, and make a reservation so you can perhaps receive $15 of credit in your account for your accommodation), Hostel World or air bnb that are my favorites. You can use filters to see better locations, price, rating, among others. I thoroughly recommend reading the general info of each hostel / hotel and also you will find the opinions of travelers. I choose the hostel according to price-location or proximity to means of transport to move around.
Once you finished selecting the above, investigate if there are abysmal differences in terms of culture
(it is not the same for a woman to travel in the Middle East or in any part of America), geography
(La Paz in Bolivia is between 4008 msmn and 3625 msnm aprox, the height can affect you if you are not aclimatized),