Depends on if your budget is fixed at 100 quid
https://www.screwfix.com/p/dewalt-dc...bi-drill/5489p
£330, but comes with 2 large capacity 5.0 ah batteries and has a good torque
https://www.screwfix.com/p/dewalt-dc...bi-drill/899cf
110 quid, comes with 2 X 2.0 ah batteries, so the run time will be 1/2 that of the above, the torque on this drill is much less aswell
BUT
the cheaper drill will do almost eveything, it might not be driving in a 4" screw straight through a fence post, but it would drill a pilot hole and drive it in easy enough, its of course a 1/3rd of the price, so you could get 2 of them and have 4 batteries charged and still have a £110 in your pocket
you then have something like this
https://www.screwfix.com/p/erbauer-e...bi-drill/692hp
2 X 5.0 ah batteries, a massive torquey drill, its a beast, all for 200 quid, putting my brand loyalty to one side ( i love dewalt gear ) this just looks to best buy