Where can I go?

Are you Israeli?
Well then you can go to Seychelles according to the Jerusalem Post (here). The two countries, Israel and Seychelles are great success stories in vaccination. The former is the best performing in the world and it is on the way to finish the second doses, the latter is at 70% of its population.
Similarly Greece has opened some islands to tourism from Israel.

Are you going Thailand?
Well from the first of July, the Thai government is trying a pilot project in Pukhet. Vaccinating at least 70% of the local population, it will reopen the resort to VACCINATED ONLY people. Activities will be pretty limited probably and the program is subject to continuous approval and screening. Also it obviously depends of many factors (eg the evolution of vaccination in Pukhet itself).