The Internet Corporation of Assigned Names and Numbers has revealed the list of new gTLD applicants and the strings that have been applied for. Here is Radix's list of extensions alongwith the number of contentions per string:

TLDs No. of Other Applicants
.website 0
.host 0
.press 0
.space 0
.ping 1
.doctor 2
.chat 3
.site 4
.baby 5
.online 3
.web 6
.news 6
.hotel 6
.store 6
.music 7
.shop 8
.blog 8
.home 9
.app 11