Look up life science units of interest to find faculty of interest. As stated above, be broad with your initial searches in different academic units. Look for buttons related to faculty or research on the websites of units you are interested in.
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Talk to faculty who teach courses you enjoy to see if they can assist you with finding research opportunities in those areas. Students in BI 212 or who have completed BI 212 and performed well can speak with Dr. Jeff Chang or other facilitators about the CONNEX undergraduate research program.
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Apply to summer research programs such as the OSU Undergraduate Research, Scholarship and the Arts program (URSA - formerly HHMI). Many of these programs are fully funded and some of them, such as URSA, do not require previous experience.
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A limited number of paid campus positions which involve research are listed on Beaver JobNet each term.