Random Stuff:
EUP6VMhfDLOjkRrSgudwuTJYvgP8g45P

Easy to read:
U88KM8H4DMCYT8YC04D8MC8U4PE1TTRP

Passwords:
B4X$,S9%>80#GXeE3@FvlQJnmu*r;m|m

URL-safe:
d.1ZKW5Vqm_92czcY7-x-deNCtqoHkeP

Lower-case:
kjlatbgzuekuxijvlfjhxgtkylychfwq