All TextBasedChannels have the method called createMessageCollector so there's no difference between TextChannel and DMChannel.
You just need to call the method and pass options inside.

// Filter for the collector
const filter = m => m.content.includes('discord');

// Create the collector
const collector = channel.createMessageCollector({ filter, time: 15_000 });

// Listen for new messages and when collector ends
collector.on('collect', m => console.log(`Collected ${m.content}`));
collector.on('end', collected => console.log(`Collected ${collected.size} items`));