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If you're not gigging a clip-on tuner should suffice for just a few quid.
If you're going to play through or record on a pc there are lots of online tuners for free. Do you have an amp yet? They often have tuners built in these days.
I have a Blackstar ID 30 amp.
I find i cannot get intonation right with clip on tuners, i have 2 at the moment, and i feel none are reliable, or is it me?
I've been through many. Currently use a TC Electronic Polytune - quick and accurate.
BOSS TU-2 is also pretty handy as is the Korg Pitchblack.
Best tuner I have ever used is the Peterson StroboClip I use at present. It is what I use for setting intonation. It is for electric, acoustic, 12 string, bass, banjo, ukulele, sitar and even bagpipes, along with tons of other instruments. I also have a Boss TU-3 but the StroboClip beats it hands down.
I've tried a few, but none were as easy to use, quick and accurate as my Boss TU-2. The cheap Behringer and others I've had, were a false economy. I have a Korg Pitchclip, which is 'OK', but it struggles to identify the deeper E string. Tried a clip on made by Crafter (RRP about £15) which was better than my Korg, as it had finer increments and seemed more sensitive, but not 'jittery'.
Another thought; are you considering FX for your electric guitar? I use a Boss ME 70 for stage and the built in tuner is up to the usual Boss standard. If you were spending up to £65 on a tuner and intend to buy FX, would it be cheaper to consider a s/h ME 70 or similar as an all in one option?
I've had a Boss TU2 for many years and I'd highly recommend it. It's very tempting to go cheap on a humble tuner, but I'd say don't be tempted to. I have a Behringer pedal tuner on my acoustic pedal board and it's really not very good. It seems to take a long time to give a reading on the low E and A strings.