Yes, Amelanchier would give you spring to autumn interest. It would typically grow to over 4m though - would that be too tall? Some varieties do sucker.
Other shrubby things you might consider, depending on your soil.
Daphne 'Eternal Fragrance' nice shape, lovely scent, evergreen.
Skimmia 'Kew Green'. Its flowers are small and insignificant but nicely scented.
Both of these are well behaved, don't need attention, just quietly do their thing.
Viburnum burkwoodii, white flowers, lovely scent. Semi evergreen.
Pyracantha. Thorny, needs pruning to shape, wonderful berries for blackbirds
Mahonia. Holly-like spiky leaves, flowers early when there's not much else around.
Choisya ternata. Good shape, evergreen, glossy aromatic leaves, white flowers
Herbe parviflora angustifolia. Pollinators love the flowers. It's evergreen and attractive. Much nicer than the regular hebes.
Pittisporum. So many to choose from. Different sizes and colours. Great foliage plant. Trouble free and easy.
Styrax japonica. Lovely shape. Fragrant. Bees like it. Deciduous
Euphorbia mellifera. Honey scented. Does not run unlike some other euphorbias.
If you could take a small tree, how about
Cercis canadensis 'Forest Pansy'
And finally.. a rose that attracts bees and also has hips e.g. Rosa Rugosa Alba
I think I'd better stop now!
Have fun.