Any suggestions on how to make a csgo/pubg style matchmaking?

I’ve looked a lot but I was wonder how I should go about making a csgo style matchmaking system where your just waiting for other people to join.

Like a lobbyless System

This is a great usecase for Matchmaking built-in to Nakama. It can do rule-based matchmaking where a player can be queued to play against a number of opponents (specified by the client) who match the criteria given.