I do not eat nightshades either so I hesitated to recommend.
have you tried vine ripened tomatoes? I found they are not as bad, it is the tomatoes that are picked unripe and gassed that are bad. Red peppers also are not as bad as unripe gree bell peppers. Any prematurely picked fruit or veggie is bad as they are not properly formulated. I avoid potatoes and other roots for multiple reasons.
A lot of people bloat and are unable to digest raw, and the predominant cold energies effect the digestion which is a hot energy. So be sure to eat the warm pungents and spicy to keep digestion up.