We report the discovery of two planetary systems around comoving stars: TOI-2076. (TIC 27491137) and TOI1807 (TIC 180695581). TOI-2076. is a nearby (41.9 pc) multiplanetary system orbiting a young (204 +/- 50 Myr), bright (K=7.115 in TIC v8.1) start. TOI-1807 hosts a single transiting planet and is similarly nearby (42.58 pc), similarly young (180 +/- 40 Myr.), and bright. Both targets exhibit significant, periodic variability due to starspots, characteristic of their young ages. Using photometric data collected by TESS. we identify three transiting planets around TOI-2076. with radii of R-b=3.3 +/- 0.04 R-circle plus, R-c=4.4.+/-.0.05 R-circle plus, and R-d=4.1 +/- 0.07 R-circle plus. Planet TOI2076b. has a period of P-b=10.356 days. For both TOI-2076c and d, TESS. observed only two transits, separated by a 2 yr interval in which no data were collected, preventing a unique period determination. A range of long periods (<17 days) are consistent with the data. We identify a short-period planet around TOI-1807 with a radius of R-b=1.8 +/- 0.04 R. and a period of P-b=0.549 days. Their close proximity, and bright, cool host stars, and young ages make these planets excellent candidates for follow up. TOI-1807b. is one of the best-known small (R<2 RA) planets for characterization via eclipse spectroscopy and phase curves with JWST. TOI-1807b. is the youngest ultra-short-period planet discovered to date, providing valuable constraints on formation timescales of short-period planets. Given the rarity of young planets, particularly in multiple-planet systems, these planets present an unprecedented opportunity to study and compare exoplanet formation, and young planet atmospheres, at a crucial transition age for formation theory.