Mitutoyo digital, probably a 150mm one would be fine. I have them at work and at home and they just work.
You can get cheap Chinese imports that are fine when nice and clean but stop working when they get a bit of swarf/cutting fluid on them.
Another vote for Mitutoyo if you can stretch to it (£70?), although that *may be overkill for your needs.
I’ve dismantled, cleaned, reassembled and calibrated pretty much every brand of vernier and digital caliper and Mitutoyo is always the one I’d recommend.
Mine’s about 15 years old now.
ETA: *will be overkill. If you’re not going to use it that much a cheap one would be fine.