As this commenter (https://lemmy.ml/comment/2274766) also said, an LTT Screwdriver from lttstore.com it is literally the best screwdriver on the market imo. I am a glazier. I work on glass, frames, screens, doors, security doors, patio doors... You name it, I'm all up in it. This screwdriver has been tortured for about 10 months I think, and it is solid as a rock. Nothing but great things to say about it.
Other things you should have. A good portable tool bag. I highly recommend a veto bag. They are amazing. They are not cheap by any means, but it's the last one you'll ever buy.
Fastcap measuring tape
A small rubber mallet
Painters tool
Putty knife
These two are very versatile and help in a ton of situations. I have never once used either of them for painting applications or drywall. But they work nicely for that stuff too.
A small 9 inch crowbar
Needle nose pliers with crimping, stripping, cutting, and paper thin holding accuracy
Lineman pliars
6" blade utility knife (DeWalt and Milwaukee ones are really good). You can snap off the sections when you dull the edge and point.
Cobalt drill bit set
Cobalt countersink set
Cobalt stuff will go through hardened steel
Speed square
Small level (torpedo levels are a decent idea)
Hardened steel chisel set
spring punch tool set
Metal file set
There is a bunch more I could list off, but yeah, these are good things to have.
I was interested in the ltt screwdriver until I found out there's not pozidriv in it. That's like 80% of the screws here in Europe (all of ikea, for instance)
I don't like the shorty torx bit that came with it so I took a regular bit and ground down the end with a bench grinder to make it a shorty bit. Worked well enough
Edit: it doesn't appear that there is a posidriv shorty bit for it on lttsrore.com. But I believe wera sells 20mm bits and I'm certain they have a posi one
Edit2: after some looking I found this:
NordWolf 20-Piece Low Profile Offset 15° Angle Mini Reversible Ratchet Wrench and Screwdriver Bits Set, Includes 19mm Square Head/Phillips/Pozidrive/Torx Security/Hex/Slotted Bits in Storage Box