I strongly recommend using Wasabi as a privacy-oriented wallet and not as a mixer.

This means that you should welcome both large chunks and smaller amounts (10k, 20k sats) because this increases your capacity to make payments privately and avoid change.

Having a variety of denominations makes it much easier to find combinations of coins for payments you need to make. Even if Wasabi can't avoid creating change for your transaction, only a tiny portion of your wallet will be known by someone else, and the labeling system (in my opinion, the most powerful tool in Wasabi) will help you avoid leaking more information to others.

Having very few coins, or in the extreme case only one coin, is a privacy nightmare. This means that whatever payment you need to make will involve a large portion of your wallet, which also means you cannot avoid change, and then your future payments will be trackable. For example, a wallet with only one coin generates a peel chain that is trivial to follow.

There are situations where consolidating can make sense, such as when coins are too small and you fear they could become unspendable or too costly to spend, but in general, it is not the best approach for privacy.

The "Wasabi is a mixer" mentality consists on sending to Wasabi, participate in many coinjoins and then consolidate everything to send it to a non-privacy-focused wallet. Do not do that.

Okay okay, if you want/need to do it then there are a couple of ways to do it to mitigate a bit these problems: