What happened to the tailed beasts? This is another one of the questions that kishimoto sensei never actually addressed after the end of the series. It could be natural that they were left alone in forests , but is there any concrete evidence suggesting the same .

What happened to the bijuu's? Are they left alone in the forest or was there equal distribution amongst villages to leverage equal power? If yes , do we know about the existences of jinchuriki's post-naruto other than killer bee and naruto ?
In Boruto Episode 55, Urashiki spoke to Momoshiki Otsutsuki about the existence of 9 massive entities of Chakra in the form of tailed beasts. However, the only tailed beasts whose locations he explicitly mentioned were the Hachibi and Kyuubi. Urashiki was the  member that the Main Branch of the Otsutsuki Clan, who was tasked with searching for the Chakra fruit that Kaguya was originally tasked with, and with his Byakugan senses he was only able to detect the Eight and Nine tails.

My Hypothesis is that; if the tailed beasts were somewhere in the open forest, then Urashiki would most definitely have mentioned them and then started with the  lesser beasts which would be easier to acquire, but rather he does not mention them at all. This could Imply that the Tailed beasts are somewhere where even Urashiki could not find. I would guess that they were hidden somewhere where No one would try to Harm or take advantage of their Chakra.