The mechanics of collecting channels do not change with language. Everything around them does: which words find anything, when people are awake, and how much tolerance a chat has for a stranger.
Keywords are the main difference
English-language channels are named with wider, blander words, and the competition for those words is heavier. One-word searches that work in a smaller language return unusable volume here.
Combinations become essential rather than optional, and the useful ones are often product names, tool names and event names rather than topics — keyword research.
The audience is not one audience
"English-speaking" covers markets with different buying habits, payment methods and working hours. A channel list that mixes them produces campaign results that average to nothing.
Split by region early, not after the first disappointing run — segmenting an audience.
Time zones change the schedule
Being first in a comment thread requires being awake when the channel publishes. With a spread of time zones that either means accounts on different schedules or accepting that some channels are worked late — being first in a thread and quiet hours.
Chat culture differs
English-speaking professional chats are frequently stricter about self-promotion and quicker to remove it, and many are moderated by bots with explicit rules. Read the pinned message before writing anything — joining without getting banned.
What does not change
The checks. Dead channels, inflated channels and unreachable list rows behave identically in every language — dead channels and cleaning a database.
How Neurogram does this
Everything above is manual work that runs into the number of hours in a day. Neurogram does it on your own accounts and without you: it collects channels and audiences, writes comments and replies with a language model, and keeps limits and quiet hours so the accounts survive. See pricing or look at your case.