In Luke 10:2 Jesus has instructed us to pray that the Lord of the harvest may send out laborers into His harvest. Even back then Jesus found that the harvest is plentiful, but there are only few workers. Not much has changed since then.
In 2018 there were 440,000 foreign Missionaries worldwide (both Catholic and Protestant). When you look at this number, you have to take into consideration though that only one in 31 missionaries goes to an unreached people group. The other 30 work among “reached” people groups, i.e. peoples that already have an indigenous community of believing Christians among them that is able to evangelize this people group without outside assistance. With about 3,190,000,000 unreached people this makes one missionary for 224,750 persons.
Pray therefore that God touches the hearts of His children and that Christians are also willing to follow His call. Pray that Jesus’ followers receive a burden for the unreached again and that they ask God in an unbiased way if He wants to use them.