k-mart,wal mart, any auto parts store stocks the basic amber bulbs.
fwiw i have clear bulbs in my clear indicators and i've never been bothered.
mine are just standard, not hyper white or any of that.
they actually appear "yellowish" when compared to my headlights.
does this answer your question ?
*92 400e 124.034, SOLD
*92 300e 124.030, SOLD