I assume you simply mean an ordinary electric guitar as "lead guitar" is a style of playing not a type of guitar.
The obvious things to look at are Epiphone (copies of Gibson type guitars) and Squier (copies of Fender type guitars) although you could afford a "real" Fender with that budget. Any of these guitars are available in natural wood finishes. Since you can already play, you need to check out these guitars and see which you like the look, feel and sound of.
Almost all electric guitars have simple passive low-pass tone controls - all you can do is cut the treble. Many players don't use their tone controls at all.
Russell is one of the best and most respected contributors here and if he says anything I disagree with I always think twice and consider carefully what he says. His opinion is always worth listening to and he knows what he's talking about. However, tuning...
Standard tuning for guitar is EADGBE. This tuning is called, "standard tuning", not "E standard" or "E" anything, just "standard tuning".
The A = 440 hertz tuning standard (NOT "standard tuning") applies to notes, not tunings. All instruments, regardless of how they at tuned follow this tuning standard. Without this standard, everyone would have their own idea of what constitute an A or a C or whatever. Using an alternative tuning on guitar, or a capo, or bending strings makes no difference, the individual notes are the same, it is still tuned to the tuning standard A = 440 hertz.
Decades ago, some players discovered if the de-tuned their low E string to D ("dropped" it to D) it was useful for playing in the key of D as the lowest bass note was a D. Also, six string D and D minor chords could be played. Lots of folk tunes were played in D (good keys for fiddle, melodeon etc.) so this tuning became popular in folk circles (Richard Thompson uses it more than anything else on acoustic guitar). This became known as "Dropped D tuning". Another variant was called "Double Dropped D" and involved de-tuning both D strings.
Now, this was okay until the "non-players" discovered that this tuning allowed them to play one-finger power chords on the bottom three strings of their guitars. Maybe they misheard the name of this tuning or couldn't get their tongues around it so they called it "drop D". "Drop tuning" involves de-tuning the sixth string so that it is as octave lower than the fourth string ("Drop D" would be DADGBE).
Then, some "players" decided to de-tune their whole guitar - the intervals would stay the same, each string would be de-tuned by the same amount (perhaps a semi-tone or a tone or even more). Then, having a de-tuned guitar they decided to de-tune the sixth string to be an octave lower than the (already de-tuned) fourth string. Terms like "drop C" or "drop B" were made-up and a lot of these "players" thought they were being really inventive and that the were using "alternative tunings" - they generally had no idea what notes or chords they were playing and had to alter the tuning of their guitar to match the key they were playing in, but they enjoyed it, beats learning to play any day!
In short, stay in standard tuning unless you have a really good reason for changing - several really brilliant players have had good reasons for experimenting with or changing their tuning, most of the people doing it now though can't even play a C chord.