Friend Search Apps, I've tried various ones recently, and there are more types than I thought.

Especially, there seems to be a lot of apps dedicated to women only.
Favomatch is said to be specialized in finding fellow enthusiasts for supporting favorite characters, so it seems good for people who are into otaku activities.
Touch has a 24-hour monitoring system, making it quite safe, so it might be suitable for beginners.
DoteMatch is also women-only, and it seems you can use the timeline feature to feel like using a social network.
When choosing a friend search app, I think safety and matching your purpose are really important.
Bumble has a friendly pricing structure for men too, and it's interesting that you can also find opposite-sex friends.
Tantan is a global app, so it has many foreign users.
For people in their 30s and 40s, Somri might also be a good option.
In the end, I think the best choice depends on your age group and purpose.
Some friend search apps are free with unlimited messaging, so I think it's worth trying them out.
But it's better to check if they have proper features like 24-hour monitoring and blocking functions.
Recent apps are quite well-developed, so there are many options, and it can be confusing.