What's the Best internal linking tool now?

Running a few sites with 3k+ posts each, and LinkWhisper is starting to become a heavy lift. Every time I run a scan, my server resources spike and the dashboard lags like crazy because it’s crunching everything locally on the WP database.

I’m looking at alternatives while the Black Friday deals are live.

Has anyone actually tested LinkBoss on a heavy site?

Their sales page makes some pretty insane claims that I’m trying to verify before I switch:

1. 1,000 Links at Once: They claim "Bulk 2.0" can build up to 1,000 interlinks in a single click. Does the "AI" actually get the context right, or am I just going to spam my site with garbage anchors? (TBH, LW suggestions are often hit-or-miss too, so maybe that's just the nature of these tools?)
2. Automated Silos: My site structure is a bit of spaghetti right now, and they do to have a "one-click" silo builder to cluster content. Has anyone actually used this to fix a messy site structure, or is it just for new sites?

Since LinkBoss runs on their cloud (SaaS) instead of my DB, it should theoretically solve the lag issue, but I’m skeptical of the quality at that volume.

TL;DR: Need a bulk linker that won't crash my SQL database. Is the LinkBoss "1000 link" feature actually usable for big sites, or is it just marketing hype? Need to decide before the BF offer ends.

Link whisper - get properly nulled copy, install, build internal links, uninstall.
Totally free.

i use Linkwhisper it's easy to use try to get correct version...

From what I’ve seen, LinkBoss is faster because it runs in the cloud, but the 1000 links in one click still needs careful checking for anchor quality.

How much time does LinkWhisper take for 3000 posts ?

I've been using linkwhisper and have been very happy with it

i suggestion LinkWhisper

LinkWhisper slows heavy sites because it runs on your WP server. LinkBoss runs in the cloud so it's faster, but you still need to check the links.

I am using LinkWhisper it is a better option internal linking

Cloud based linkers handle large sites better because they remove the load from your WordPress database. LinkBoss performs faster on big sites, but the bulk linking still needs human checks. No tool gets anchors perfect at high volume. If performance is the main issue, switching to a SaaS linker makes sense. If you expect completely accurate automated links, no tool can deliver that.

Link boss is easier on large sites because it runs in the cloud,so it will not slow down.