Players should only be able to select a token that the GM has given them control of in the 'Controlled By' section of the token. If the token is set with 'Represents Character' to a character sheet, the GM will need to give them control of the character on the 'Can be Edited & Controlled By' section of the character sheet. If your players were able to select tokens otherwise, then there was some kind of unintended bug going on. Your players should always be able to use a macro target call to select any other tokens on the Tokens layer. If they are unable to target another token that is visible to them, double check to make sure the token is not actually on the Map layer. If the target token is visible and on the Token layer, and they are unable to use a target call, then you have a bug of some kind. Here is an example of a simple macro to let your players inform you of which token they are targeting: /em is targeting @{target||token_name} You can set that up as a Token Action for their character's token. I have that for my players, using a 'bullseye' emoji (🎯) as the Token Action Name to save space.
