The sports that I like to bet when sports will resume.
1) PBA (our local basketball organization)
2) NBA
3) Boxing especially on popular boxers.
Maybe it may take quite sometime before everything gets back to normal which includes hosting a live sports event since there is still no vaccine or medication being discovered that will cure or stop the covid-19 pandemic. But there could be a possibility that there can still be a soon response on this on which sports events might be conducted in a "new normal" manner in which only players are allowed in the place with no audience and if there will, social distancing and other health protocols will be needs to be strictly conducted to avoid the spread of virus
I have read a post in this forum that at this month of June sports betting on boxing might be held which will follow strict health protocols.
https://bitcointalksearch.org/topic/boxing-betting-this-june-5248072
Slowly, sports events will come back in a "new normal" manner while there is still no vaccine so betting on sports book will sooner or later be back once again. Let us just all wait until such time for there are alternative ways possible so that we can still be able to have sports betting.