 Pompidou Center Tours

I'd say skip the tour and do your own wandering. Modern art is an amazing thing----may as well go see the pieces that interest you.

I LOVE the Pompidou and the Stravinsky fountain is one of my favorites in Paris!

Get in line early. The admission line often takes 2 hours to get in.

I was there earlier this week. Note that half of the collection -- everything since 1965 is closed for renovation till some time in June which may account for the fact that there was zero line for tickets and maybe 8 people ahead of us for security. There is a lovely exhibit of Walker Evans photography up at the moment on the 6th floor.

No, there aren't any tours for the building and only a few for the Museum, one a day on the weekend, focusing on specific art. It's really worth visiting, even with those galleries closed.

I don't think it's because of closures - I've never had to wait for a long time to get into the Pompidou.

I've never had to wait long either. The last time I went was on Christmas day last year, and it's one of the few museums open that day. I did have the Museum pass, so that line was even shorter.
The restaurant at the top, Georges., has lovely views. At least have a coffee up there.

The various lines at opening snaked up the parvis/esplanade and back around during the Magritte exhibit, but were cleared out a couple of hours later. OTOH, the line upstairs to get into the Magritte exhibit had grown considerably two hours later. Same with the Dada exhibit a few years ago. If you have a ticket in hand, it's faster. If I remember correctly, we bought them on the Pompidou website or the FNAC website.

My favorite time at the Pompidou was always during evening hours, particularly in summer with the light changing. And no lines.

The regular exhibits aren't the ones that people want to see.
The temporary exhibits are the ones that people queue up for hours to see.
The OP did not state when he/she would be coming, so might have a chance to see all the exhibits when the work is finished.