Which one be best for .fr backorder? The expiring domain be so much strong.

Some popular options include DropCatch, SnapNames, and NameJet, but for .fr domains specifically, you might want to consider French-based services like Gandi or OVH, as they have a closer connection to the local market and may offer better chances of securing the domain.

The strength of the domain is crucial, so you'll want to look at its backlink profile, domain authority, and any existing traffic it might have. These factors can significantly impact the value of the domain once you acquire it. Keep in mind that timing is essential; backordering requires you to act quickly once the domain expires and becomes available.

Also, consider the pricing model of the backordering service. Some might charge a flat fee, while others could have an auction-based system if multiple parties are interested in the same domain. It's important to have a clear budget in mind and be prepared for potential bidding wars.
Ensure you're familiar with the rules and regulations surrounding .fr domains, as there might be specific eligibility criteria or restrictions depending on your location or business type. By understanding these aspects, you'll be better positioned to successfully backorder a strong .fr domain.