Like any other audio device, it's a matter of preference.
If the important thing for you is being able to hear the others, an "ear muff" style would suit. They shut out other noise in your room, and there will be little feedback between them and the microphone. In the days of audio conference calls, these were a lot more common. I have a Microsoft set with a USB connection from about 2010. They work well enough for me, but they look massive in video calls.
There are also sets with a single earpiece and a strap over your head to keep them on. We used to use this type for our phones at work. They worked well for that. You could type whilst on a call, and still hear someone on the next desk.
Both types have microphones on a boom so you can position it appropriately close to your mouth.
With a tablet, you need to consider how it will connect. If your tablet has Bluetooth, that gives an easy link to a range of headsets. Otherwise, USB is your option. You may need a USB adaptor; most headsets would use a USB-A connector (rectangular, 12mm by 4.5mm). Tablets tend to use the micro-USB connectors common on mobile phones. Some use USB-C connectors, which have rounded ends and can be plugged in either way round.
Bluetooth headsets let you wander away, to make a cup of tea for example, without having to unplug, or get comfortable again on your return.
All these things can be found online (Curry's, Argos, Amazon etc.).
