your best bet is to search for a golden saint or dremolo lord and kill if to get deadric items , however if you go to the dren plantation and search the houses you can find a couple of deadric weapons like ( 2 deadric long sword and a deadric broad sword.

check the deadric shines

Just look around and find any ruins you can... beat the monsters there and you will get some weapons... some are better to sell than to keep though... they're really heavy.

If you take the silt strider to Suron directly north of there is a deadoric shrine. There
are a few entrences, you want the one that will send you in the top of the shrine, it will
be rectangular with a rectangular hole in the middle; but anyway there are two dremora
lords up there, kill them, rest, go out comeback in kill them again. they should always
have deadoric wepones, but dworvin garbage, and sometimes you will find a deadorith, but
they shouldn't appear for more then 3 times in a row. (There is also a golden saint down
the rectangular hole, and in the basement.)